<SEC-DOCUMENT>0000936395-24-000012.txt : 20240326
<SEC-HEADER>0000936395-24-000012.hdr.sgml : 20240326
<ACCEPTANCE-DATETIME>20240326095051
ACCESSION NUMBER:		0000936395-24-000012
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		14
CONFORMED PERIOD OF REPORT:	20240321
ITEM INFORMATION:		Changes in Control of Registrant
ITEM INFORMATION:		Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers
ITEM INFORMATION:		Financial Statements and Exhibits
FILED AS OF DATE:		20240326
DATE AS OF CHANGE:		20240326

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CIENA CORP
		CENTRAL INDEX KEY:			0000936395
		STANDARD INDUSTRIAL CLASSIFICATION:	TELEPHONE & TELEGRAPH APPARATUS [3661]
		ORGANIZATION NAME:           	04 Manufacturing
		IRS NUMBER:				232725311
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1102

	FILING VALUES:
		FORM TYPE:		8-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-36250
		FILM NUMBER:		24781342

	BUSINESS ADDRESS:	
		STREET 1:		7035 RIDGE ROAD
		CITY:			HANOVER
		STATE:			MD
		ZIP:			21076
		BUSINESS PHONE:		4108658500

	MAIL ADDRESS:	
		STREET 1:		7035 RIDGE ROAD
		CITY:			HANOVER
		STATE:			MD
		ZIP:			21076
</SEC-HEADER>
<DOCUMENT>
<TYPE>8-K
<SEQUENCE>1
<FILENAME>cien-20240321.htm
<DESCRIPTION>8-K
<TEXT>
<XBRL>
<?xml version='1.0' encoding='ASCII'?>
<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2024 Workiva-->
<!--r:72ced301-bbf6-4039-b2a4-cb0eaa1f86f0,g:e79a7652-e8dc-4ae2-bbe3-307dd1cd83c6,d:ef5f9ef5ec57498bae4595253b459d84-->
<html xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:ixt="http://www.xbrl.org/inlineXBRL/transformation/2020-02-12" xmlns="http://www.w3.org/1999/xhtml" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:ixt-sec="http://www.sec.gov/inlineXBRL/transformation/2015-08-31" xmlns:ix="http://www.xbrl.org/2013/inlineXBRL" xmlns:dei="http://xbrl.sec.gov/dei/2023" xmlns:link="http://www.xbrl.org/2003/linkbase" xml:lang="en-US"><head><meta http-equiv="Content-Type" content="text/html"/>


<title>cien-20240321</title></head><body><div style="display:none"><ix:header><ix:hidden><ix:nonNumeric contextRef="c-1" name="dei:EntityCentralIndexKey" id="f-21">0000936395</ix:nonNumeric><ix:nonNumeric contextRef="c-1" name="dei:AmendmentFlag" format="ixt:fixed-false" id="f-22">FALSE</ix:nonNumeric></ix:hidden><ix:references xml:lang="en-US"><link:schemaRef xlink:type="simple" xlink:href="cien-20240321.xsd"/></ix:references><ix:resources><xbrli:context id="c-1"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0000936395</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:startDate>2024-03-21</xbrli:startDate><xbrli:endDate>2024-03-21</xbrli:endDate></xbrli:period></xbrli:context></ix:resources></ix:header></div><div id="ief5f9ef5ec57498bae4595253b459d84_1"></div><div style="min-height:18pt;width:100%"><div><span><br/></span></div></div><div style="-sec-extract:summary;text-align:center"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:99.561%"><tr><td style="width:1.0%"/><td style="width:32.233%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:32.233%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:32.234%"/><td style="width:0.1%"/></tr><tr style="height:9pt"><td colspan="3" style="border-bottom:3pt double #000000;padding:0 1pt"/><td colspan="3" style="border-bottom:3pt double #000000;padding:0 1pt"/><td colspan="3" style="border-bottom:3pt double #000000;padding:0 1pt"/></tr></table></div><div style="text-align:center"><span><br/></span></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:12pt;font-weight:700;line-height:120%">UNITED STATES</span></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:12pt;font-weight:700;line-height:120%">SECURITIES AND EXCHANGE COMMISSION</span></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:12pt;font-weight:700;line-height:120%">Washington, DC 20549</span></div><div style="margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:99.561%"><tr><td style="width:1.0%"/><td style="width:32.233%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:32.233%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:32.234%"/><td style="width:0.1%"/></tr><tr style="height:9pt"><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="padding:0 1pt"/></tr></table></div><div style="margin-bottom:1pt;text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:16pt;font-weight:700;line-height:120%">FORM <ix:nonNumeric contextRef="c-1" name="dei:DocumentType" id="f-1">8-K</ix:nonNumeric> </span></div><div style="margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:99.561%"><tr><td style="width:1.0%"/><td style="width:32.233%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:32.233%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:32.234%"/><td style="width:0.1%"/></tr><tr style="height:9pt"><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="border-bottom:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="padding:0 1pt"/></tr></table></div><div style="text-align:center"><span><br/></span></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:12pt;font-weight:700;line-height:120%">CURRENT REPORT </span></div><div style="margin-top:6pt;text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:12pt;font-weight:700;line-height:120%">Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934</span></div><div style="margin-top:6pt;text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Date of report (Date of earliest event reported):</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">    <ix:nonNumeric contextRef="c-1" name="dei:DocumentPeriodEndDate" format="ixt:date-monthname-day-year-en" id="f-2">March 21, 2024</ix:nonNumeric> </span></div><div style="margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:99.561%"><tr><td style="width:1.0%"/><td style="width:32.233%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:32.233%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:32.234%"/><td style="width:0.1%"/></tr><tr style="height:15pt"><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="border-bottom:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="padding:0 1pt"/></tr></table></div><div style="margin-top:1pt;text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:20pt;font-weight:700;line-height:100%"><ix:nonNumeric contextRef="c-1" name="dei:EntityRegistrantName" id="f-3">Ciena Corp</ix:nonNumeric>oration</span></div><div style="margin-bottom:6pt;text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:110%">(Exact name of registrant as specified in its charter)</span></div><div style="margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:99.561%"><tr><td style="width:1.0%"/><td style="width:32.233%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:32.233%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:32.234%"/><td style="width:0.1%"/></tr><tr style="height:15pt"><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="padding:0 1pt"/></tr></table></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:2pt;font-weight:400;line-height:120%">  </span></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Commission File Number:</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%"> <ix:nonNumeric contextRef="c-1" name="dei:EntityFileNumber" id="f-4">001-36250</ix:nonNumeric> </span></div><div style="text-align:center"><span><br/></span></div><div style="text-align:center"><span><br/></span></div><div style="width:100.000%"><div style="display:inline-block;vertical-align:top;width:35.964%"><div><span><br/></span></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%"><ix:nonNumeric contextRef="c-1" name="dei:EntityIncorporationStateCountryCode" format="ixt-sec:stateprovnameen" id="f-5">Delaware</ix:nonNumeric></span></div><div style="margin-bottom:1pt;text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">(State or other jurisdiction of incorporation)</span></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%"><ix:nonNumeric contextRef="c-1" name="dei:EntityAddressAddressLine1" id="f-6">7035 Ridge Road</ix:nonNumeric>, <ix:nonNumeric contextRef="c-1" name="dei:EntityAddressCityOrTown" id="f-7">Hanover</ix:nonNumeric>, <ix:nonNumeric contextRef="c-1" name="dei:EntityAddressStateOrProvince" id="f-8">MD</ix:nonNumeric> </span></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">(Address of principal executive offices)</span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> </span></div></div><div style="display:inline-block;max-width:28.070%;min-width:27.070%;vertical-align:top"></div><div style="display:inline-block;vertical-align:top;width:35.966%"><div><span><br/></span></div><div style="margin-bottom:1pt;text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%"><ix:nonNumeric contextRef="c-1" name="dei:EntityTaxIdentificationNumber" id="f-9">23-2725311</ix:nonNumeric></span></div><div style="margin-bottom:1pt;text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">(IRS Employer Identification No.)</span></div><div style="margin-bottom:1pt;text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%"><ix:nonNumeric contextRef="c-1" name="dei:EntityAddressPostalZipCode" id="f-10">21076</ix:nonNumeric> </span></div><div style="margin-bottom:1pt;text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">(Zip Code)</span></div></div></div><div style="margin-bottom:1pt;text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> </span></div><div style="margin-bottom:1pt;text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Registrant's telephone number, including area code</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:120%">:</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:700;line-height:120%"> </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">(<ix:nonNumeric contextRef="c-1" name="dei:CityAreaCode" id="f-11">410</ix:nonNumeric>)</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:700;line-height:120%"> </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%"><ix:nonNumeric contextRef="c-1" name="dei:LocalPhoneNumber" id="f-12">694-5700</ix:nonNumeric></span></div><div style="margin-bottom:6pt;text-align:center"><span><br/></span></div><div style="margin-bottom:1pt;text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Not Applicable</span></div><div style="margin-bottom:6pt;text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">(Former name or former address, if changed since last report)</span></div><div style="margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:99.707%"><tr><td style="width:1.0%"/><td style="width:3.445%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:30.718%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:30.718%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:30.719%"/><td style="width:0.1%"/></tr><tr><td colspan="12" style="padding:2px 1pt;text-align:left;vertical-align:top"><div style="margin-bottom:1pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:100%">see </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">General Instruction A.2. below):</span></div></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Arial Unicode MS',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonNumeric contextRef="c-1" name="dei:WrittenCommunications" format="ixt-sec:boolballotbox" id="f-13">&#9744;</ix:nonNumeric></span></td><td colspan="9" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="margin-bottom:1pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)</span></div></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Arial Unicode MS',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonNumeric contextRef="c-1" name="dei:SolicitingMaterial" format="ixt-sec:boolballotbox" id="f-14">&#9744;</ix:nonNumeric></span></td><td colspan="9" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="margin-bottom:1pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)</span></div></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Arial Unicode MS',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonNumeric contextRef="c-1" name="dei:PreCommencementTenderOffer" format="ixt-sec:boolballotbox" id="f-15">&#9744;</ix:nonNumeric></span></td><td colspan="9" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="margin-bottom:1pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))</span></div></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Arial Unicode MS',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonNumeric contextRef="c-1" name="dei:PreCommencementIssuerTenderOffer" format="ixt-sec:boolballotbox" id="f-16">&#9744;</ix:nonNumeric></span></td><td colspan="9" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))</span></td></tr></table></div><div style="text-align:center"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"><tr><td style="width:1.0%"/><td style="width:32.233%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:32.233%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:32.234%"/><td style="width:0.1%"/></tr><tr><td colspan="9" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Securities registered pursuant to Section 12(b) of the Act:</span></td></tr><tr><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="margin-bottom:1pt;text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Title of each class</span></div></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="margin-bottom:1pt;text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Trading Symbol(s)</span></div></td><td colspan="3" style="border-left:1pt solid #000000;border-right:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="margin-bottom:1pt;text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Name of each exchange on which registered</span></div></td></tr><tr><td colspan="3" style="border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="margin-bottom:1pt;text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonNumeric contextRef="c-1" name="dei:Security12bTitle" id="f-17">Common stock, $0.01 par value</ix:nonNumeric></span></div></td><td colspan="3" style="border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="margin-bottom:1pt;text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonNumeric contextRef="c-1" name="dei:TradingSymbol" id="f-18">CIEN</ix:nonNumeric></span></div></td><td colspan="3" style="border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="margin-bottom:1pt;text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonNumeric contextRef="c-1" name="dei:SecurityExchangeName" format="ixt-sec:exchnameen" id="f-19">New York Stock Exchange</ix:nonNumeric></span></div></td></tr></table></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (&#167;230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (&#167;240.12b-2 of this chapter).</span></div><div style="text-align:right"><span><br/></span></div><div style="text-align:right"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Emerging growth company </span><span style="color:#000000;font-family:'Arial Unicode MS',sans-serif;font-size:10pt;font-weight:400;line-height:120%"><ix:nonNumeric contextRef="c-1" name="dei:EntityEmergingGrowthCompany" format="ixt-sec:boolballotbox" id="f-20">&#9744;</ix:nonNumeric></span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> </span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. </span><span style="color:#000000;font-family:'Arial Unicode MS',sans-serif;font-size:10pt;font-weight:400;line-height:120%">&#9744;</span></div><div style="height:18pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div><span><br/></span></div></div></div><div id="ief5f9ef5ec57498bae4595253b459d84_7"></div><hr style="page-break-after:always"/><div style="min-height:42.75pt;width:100%"><div><span><br/></span></div></div><div style="text-align:justify"><span><br/></span></div><div><span><br/></span></div><div style="-sec-extract:summary;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:700;line-height:120%">ITEM 5.02 - DEPARTURE OF DIRECTORS OR CERTAIN OFFICERS; ELECTION OF DIRECTORS; APPOINTMENT OF CERTAIN OFFICERS; COMPENSATORY ARRANGEMENTS OF CERTAIN OFFICERS</span></div><div style="text-align:justify"><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:115%">On March 21, 2024, at the 2024 annual meeting of stockholders (the &#8220;Annual Meeting&#8221;) of Ciena Corporation (&#8220;Ciena&#8221;), Ciena&#8217;s stockholders approved an amendment to the Ciena Corporation 2017 Omnibus Incentive Plan (the &#8220;2017 Plan&#8221;) (i) to increase, by 10.1 million shares, the number of shares of Ciena common stock available for issuance under the 2017 Plan and (ii) to increase the recoupment period for misconduct relating to accounting restatements from 12 months to three years (the &#8220;Plan Amendment&#8221;). The Plan Amendment became effective upon approval by the stockholders. </span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:115%">A description of the Plan Amendment is set forth in Ciena&#8217;s definitive proxy statement for the Annual Meeting, filed with the Securities and Exchange Commission on </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:12pt;font-weight:400;line-height:115%">February 8, 2024</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:115%">, in the section entitled "Proposal No. 2 - Amendment of Ciena's 2017 Omnibus Incentive Plan,&#8221; which description is incorporated herein by reference. The description is qualified in its entirety by reference to the full text of the Plan Amendment, a copy of which is attached hereto as Exhibit 10.1 and incorporated herein by reference.</span></div><div style="text-align:justify"><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:700;line-height:174%">ITEM 5.07 - SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS </span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:115%">Ciena held the Annual Meeting on March 21, 2024. As of the January 22, 2024 record date, there were 145,008,717 shares of common stock outstanding and entitled to notice of and to vote at the Annual Meeting. The matters described below were voted on by stockholders at the Annual Meeting and the number of votes cast with respect to each matter, and with respect to the election of directors, were as indicated below: </span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:120%">&#160;&#160;&#160;&#160;</span><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"><tr><td style="width:1.0%"/><td style="width:52.262%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:12.057%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.157%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:8.256%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:11.768%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:100%;text-decoration:underline">Proposal 1 - Election of Directors</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:100%;text-decoration:underline">For</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:100%;text-decoration:underline">Against</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:100%;text-decoration:underline">Abstain</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:100%;text-decoration:underline">Non-Votes</span></td></tr><tr style="height:5pt"><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:0 1pt"/></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:100%">Election to the Board of Directors of four Class III directors:</span></td><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:0 1pt"/></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#010101;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:100%">Hassan M. Ahmed, Ph.D.</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">116,649,883</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">5,030,615</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">73,959</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">9,075,016</span></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#010101;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:100%">Bruce L. Claflin</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">113,894,507</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">7,783,896</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">76,054</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">9,075,016</span></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#010101;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:100%">Patrick T. Gallagher</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">104,886,591</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">16,768,561</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">99,305</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">9,075,016</span></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#010101;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:100%">T. Michael Nevens</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">120,237,225</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">1,443,539</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">73,693</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">9,075,016</span></td></tr><tr style="height:14pt"><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:0 1pt"/></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#010101;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:100%">Election to the Board of Directors of one Class II director:</span></td><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:0 1pt"/></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#010101;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:100%">Mary G. Puma</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">108,590,083</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">13,084,708</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">79,666</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">9,075,016</span></td></tr></table></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:120%">Each director nominee above was elected by the vote of the majority of the votes cast by stockholders in accordance with Ciena's bylaws. Each Class III director will serve a three-year term expiring at the 2027 annual meeting of stockholders, and until such director&#8217;s successor is duly elected and qualified, or until such director&#8217;s earlier death, resignation, or removal from the Board of Directors. The Class II director will serve the remainder of her term until the 2026 annual meeting of stockholders, and until such director&#8217;s successor is duly elected and qualified, or until such director&#8217;s earlier death, resignation, or removal from the Board of Directors.</span></div><div><span><br/></span></div><div style="text-align:justify"><span><br/></span></div><div style="height:42.75pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div><span><br/></span></div></div></div><hr style="page-break-after:always"/><div style="min-height:42.75pt;width:100%"><div><span><br/></span></div></div><div style="text-align:justify"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:99.707%"><tr><td style="width:1.0%"/><td style="width:52.419%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:11.656%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.190%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.043%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.192%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:100%;text-decoration:underline">Proposal 2 - Amendment to 2017 Plan</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:100%;text-decoration:underline">For</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:100%;text-decoration:underline">Against</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:100%;text-decoration:underline">Abstain</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:100%;text-decoration:underline">Non-Votes</span></td></tr><tr style="height:5pt"><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:0 1pt"/></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:100%">Approval of the amendment of Ciena's 2017 Omnibus Incentive Plan to (i) increase the number of shares available for issuance thereunder by 10.1 million shares and (ii) increase the recoupment period for misconduct relating to accounting restatements from 12 months to three years:</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">115,625,116</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">6,044,246</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">85,095</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">9,075,016</span></td></tr></table></div><div style="text-align:justify"><span><br/></span></div><div style="text-align:justify"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:99.707%"><tr><td style="width:1.0%"/><td style="width:52.419%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:11.656%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.190%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.043%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.192%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:100%;text-decoration:underline">Proposal 3 - Amendment to Certificate of Incorporation</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:100%;text-decoration:underline">For</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:100%;text-decoration:underline">Against</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:100%;text-decoration:underline">Abstain</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:100%;text-decoration:underline">Non-Votes</span></td></tr><tr style="height:5pt"><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:0 1pt"/></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:100%">Approval of the amendment of Ciena's Amended and Restated Certificate of Incorporation, as amended, to provide for officer exculpation:</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">110,488,692</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">11,163,942</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">101,823</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">9,075,016</span></td></tr></table></div><div style="text-align:justify"><span><br/></span></div><div style="margin-top:5pt"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:99.707%"><tr><td style="width:1.0%"/><td style="width:52.419%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:11.656%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.190%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.043%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.192%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:100%;text-decoration:underline">Proposal 4 - Ratification of Independent Auditors</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:100%;text-decoration:underline">For</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:100%;text-decoration:underline">Against</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:100%;text-decoration:underline">Abstain</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:100%;text-decoration:underline">Non-Votes</span></td></tr><tr style="height:5pt"><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:0 1pt"/></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:100%">Ratification of the appointment of PricewaterhouseCoopers LLP as Ciena's independent registered public accounting firm for fiscal 2024:</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">120,216,118</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">10,531,080</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">82,275</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">0</span></td></tr></table></div><div><span><br/></span></div><div style="margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:99.853%"><tr><td style="width:1.0%"/><td style="width:52.340%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:11.784%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.173%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.027%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.176%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:100%;text-decoration:underline">Proposal 5 - Stockholder Advisory Vote</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:100%;text-decoration:underline">For</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:100%;text-decoration:underline">Against</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:100%;text-decoration:underline">Abstain</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:100%;text-decoration:underline">Non-Votes</span></td></tr><tr style="height:5pt"><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:0 1pt"/></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:100%">A stockholder advisory vote on the named executive officer compensation described in the proxy materials:</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">109,616,628</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">12,044,975</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">92,854</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">9,075,016</span></td></tr></table></div><div style="text-align:justify"><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:120%">Proposals 2, 4, and 5 were each approved by the affirmative vote of a majority of shares present in person or represented by proxy at the Annual Meeting and entitled to vote on the proposal, with abstentions having the same effect as a vote &#8220;AGAINST&#8221; and broker non-votes not counted as a vote either &#8220;FOR&#8221; or &#8220;AGAINST&#8221; and having no effect on the outcome of the vote.</span></div><div style="text-align:justify"><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:120%">Proposal 3 was approved by the affirmative vote of holders of at least 66 2/3% of the voting power of all of the outstanding shares of stock entitled to vote at the Annual Meeting, with abstentions and broker non-votes having the same effect as a vote &#8220;AGAINST.&#8221;</span></div><div><span><br/></span></div><div style="margin-bottom:10pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:700;line-height:120%">ITEM 9.01 &#8211; FINANCIAL STATEMENTS AND EXHIBITS</span></div><div style="margin-bottom:10pt;margin-top:5pt"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:98.830%"><tr><td style="width:1.0%"/><td style="width:5.556%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:17.391%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:23.012%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:23.012%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:25.529%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="margin-bottom:1pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:100%">(d)</span></div></td><td colspan="12" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="margin-bottom:1pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:100%">The following exhibits are being filed herewith:</span></div></td></tr><tr style="height:15pt"><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:0 1pt"/><td colspan="9" style="padding:0 1pt"/></tr><tr><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="margin-bottom:1pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:100%;text-decoration:underline">Exhibit Number</span></div></td><td colspan="9" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="margin-bottom:1pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:100%;text-decoration:underline">Description of Document</span></div></td></tr><tr style="height:14pt"><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:0 1pt"/><td colspan="9" style="padding:0 1pt"/></tr><tr><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><div style="margin-bottom:1pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:100%">Exhibit 10.1</span></div></td><td colspan="9" style="padding:2px 1pt;text-align:left;vertical-align:top"><div style="margin-bottom:8pt"><span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:100%;text-decoration:underline"><a style="-sec-extract:exhibit;color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:100%;text-decoration:underline" href="ex1012024annualmeetingresu.htm">Amendment</a><a style="-sec-extract:exhibit;color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:100%;text-decoration:underline" href="ex1012024annualmeetingresu.htm"> No. 2</a><a style="-sec-extract:exhibit;color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:100%;text-decoration:underline" href="ex1012024annualmeetingresu.htm"> to Ciena Corporation 2017 Omnibus Incentive Plan</a></span></div></td></tr><tr><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><div style="margin-bottom:1pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:100%">Exhibit 104</span></div></td><td colspan="9" style="padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:100%">Cover Page Interactive Data File (embedded within the Inline XBRL document).</span></td></tr></table></div><div style="margin-bottom:10pt"><span><br/></span></div><div style="height:42.75pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div><span><br/></span></div></div></div><div id="ief5f9ef5ec57498bae4595253b459d84_10"></div><hr style="page-break-after:always"/><div style="min-height:42.75pt;width:100%"><div><span><br/></span></div></div><div style="-sec-extract:summary;margin-bottom:12pt;text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:700;line-height:120%">SIGNATURES</span></div><div style="margin-bottom:12pt"><span><br/></span></div><div><span><br/></span></div><div><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:99.853%"><tr><td style="width:1.0%"/><td style="width:98.900%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><div style="margin-bottom:1pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:100%">Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.</span></div></td></tr></table></div><div style="margin-bottom:12pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:120%">&#160;&#160;&#160;&#160;</span></div><div><span><br/></span></div><div><span><br/></span></div><div><span><br/></span></div><div><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:99.853%"><tr><td style="width:1.0%"/><td style="width:41.652%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:4.170%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:50.878%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="padding:0 1pt"/><td colspan="6" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="margin-bottom:1pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:700;line-height:100%">Ciena Corporation</span></div></td></tr><tr style="height:15pt"><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:0 1pt"/></tr><tr style="height:15pt"><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:0 1pt"/></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="margin-bottom:1pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:100%">Date:   March 26, 2024</span></div></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="margin-bottom:1pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:100%">By:</span></div></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:100%">/S/ Sheela Kosaraju</span></td></tr><tr><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="margin-bottom:1pt;padding-left:238.5pt;text-align:justify;text-indent:-236.25pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:100%">Sheela Kosaraju</span></div></td></tr><tr><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="margin-bottom:1pt;padding-left:238.5pt;text-indent:-236.25pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:100%">SVP, General Counsel and Assistant Secretary</span></div></td></tr></table></div><div><span><br/></span></div><div style="height:42.75pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div><span><br/></span></div></div></div></body></html>
</XBRL>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-10.1
<SEQUENCE>2
<FILENAME>ex1012024annualmeetingresu.htm
<DESCRIPTION>EX-10.1
<TEXT>
<html><head>
<!-- Document created using Wdesk -->
<!-- Copyright 2024 Workiva -->
<title>Document</title></head><body><div id="iaeca1c7f412c4f4a950670d5347c4194_35"></div><div style="min-height:72pt;width:100%"><div><font><br></font></div></div><div style="text-align:center"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:14pt;font-weight:700;line-height:112%">AMENDMENT NO. 2 TO </font></div><div style="text-align:center"><font><br></font></div><div style="text-align:center"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:14pt;font-weight:700;line-height:112%">CIENA CORPORATION 2017 OMNIBUS INCENTIVE PLAN</font></div><div style="text-align:center"><font><br></font></div><div style="text-indent:24.5pt"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:112%">THIS AMENDMENT NO. 2 (this &#8220;Amendment&#8221;) to the Ciena Corporation 2017 Omnibus Incentive Plan (the &#8220;Plan&#8221;), which (i) increases the number of shares available for issuance under the Plan by ten million, one hundred thousand (10,100,000) shares and (ii) to increase the recoupment period for misconduct relating to accounting restatements from 12 months to three years, was adopted by the Board of Directors of Ciena Corporation (the &#8220;Company&#8221;) on December 5, 2023, and is effective as of March 21, 2024, the date upon which the Amendment received approval of the stockholders of the Company.</font></div><div style="text-indent:24.5pt"><font><br></font></div><div><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:99.839%"><tr><td style="width:1.0%"></td><td style="width:4.036%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:4.036%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:88.628%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><div style="text-align:right"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:112%">1.</font></div></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><div><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:112%">The Plan is hereby amended by deleting Section 3.4 and replacing it in its entirety as follows&#58;</font></div></td></tr></table></div><div style="text-indent:49pt"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:700;line-height:112%">&#8220;3.4 Forfeiture&#59; Recoupment.</font></div><div style="text-indent:49pt"><font><br></font></div><div style="text-indent:49pt"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:112%">The Company may retain the right in an Award Agreement to cause a forfeiture of the gain realized by a Grantee with respect to an Award thereunder on account of actions taken by, or failed to be taken by, the Grantee in violation or breach of or in conflict with any employment agreement, non-competition agreement, any agreement prohibiting solicitation of employees or clients of the Company or any Affiliate thereof or any confidentiality obligation with respect to the Company or any Affiliate thereof or otherwise in competition with the Company or any Affiliate thereof, to the extent specified in such Award Agreement applicable to the Grantee. In addition, the Company may terminate and cause the forfeiture of an Award if the Grantee is an employee of the Company or an Affiliate thereof and is terminated for Cause as defined in the applicable Award Agreement or the Plan, as applicable.</font></div><div style="text-indent:49pt"><font><br></font></div><div style="text-indent:49pt"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:112%">Furthermore, if the Company is required to prepare an accounting restatement due to the material noncompliance of the Company, as a result of misconduct, with any financial reporting requirement under the securities laws, the individuals subject to automatic forfeiture under Section 304 of the Sarbanes-Oxley Act of 2002 and any Grantee who knowingly engaged in the misconduct, was grossly negligent in engaging in the misconduct, knowingly failed to prevent the misconduct, or was grossly negligent in failing to prevent the misconduct, shall reimburse the Company the amount of any payment in settlement of an Award earned or accrued during the three-year period following the first public issuance or filing with the United States Securities and Exchange Commission (whichever first occurred) of the financial document that contained such material noncompliance.</font></div><div style="text-indent:49pt"><font><br></font></div><div style="text-indent:49pt"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:112%">Any Award granted pursuant to the Plan shall be subject to mandatory repayment by the Grantee to the Company (i) to the extent set forth in this Plan or an Award Agreement or (ii) to the extent the Grantee is, or in the future becomes, subject to (A) the Company&#8217;s Executive Compensation Clawback Policy or any other Company or Affiliate &#8220;clawback&#8221; or recoupment policy that is adopted by the Company, including to comply with the requirements of Applicable Law, or (B) any Applicable Law that imposes mandatory recoupment, under circumstances set forth in such Applicable Law.&#8221;</font></div><div style="text-indent:49pt"><font><br></font></div><div><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:95.032%"><tr><td style="width:1.0%"></td><td style="width:4.296%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:4.296%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:88.108%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><div style="text-align:right"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:112%">2.</font></div></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><div><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:112%">The Plan is hereby amended by deleting Section 4.1 and replacing it in its entirety as follows&#58;</font></div></td></tr></table></div><div style="text-indent:49pt"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:700;line-height:112%">&#8220;4.1. Number of Shares Available for Awards.</font></div><div style="text-indent:49pt"><font><br></font></div><div style="text-indent:49pt"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:112%">Subject to such additional shares of Stock as shall be available for issuance under the Plan pursuant to Section 4.2, and subject to adjustment pursuant to Section 15, the maximum number of shares of Stock reserved for issuance under the Plan shall be equal to the sum of (a) thirty-one million, two hundred thousand (31,200,000) shares of Stock, plus (b) the number of shares of Stock available for future awards under the 2008 Plan as of the Effective Date, plus (c) the number of shares of Stock related to awards outstanding under the Prior Plans as of the Effective Date that thereafter terminate by expiration or forfeiture, cancellation, or otherwise without the issuance of such shares of Stock (collectively, and in the aggregate, the &#8220;Authorized Share Amount&#8221;), all of which may be granted as Incentive Stock Options. Stock issued or to be issued under the Plan shall be authorized but unissued shares, or to the extent permitted by Applicable Law, issued shares that have been reacquired by the Company.&#8221;</font></div><div style="text-indent:49pt"><font><br></font></div><div style="text-align:center"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:112%">* * *</font></div><div style="text-align:center"><font><br></font></div><div style="text-align:center"><font><br></font></div><div style="text-align:center"><font><br></font></div><div style="text-align:center"><font><br></font></div><div style="text-align:center"><font><br></font></div><div style="text-align:center"><font><br></font></div><div style="height:72pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div><font><br></font></div></div></div><hr style="page-break-after:always"><div style="min-height:72pt;width:100%"><div><font><br></font></div></div><div style="text-indent:24.5pt"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:112%">To record adoption of the Amendment of the Plan by the Board as of December 5, 2023, and approval of the Amendment by the stockholders on March 21, 2024, the Company has caused its authorized officer to execute this Amendment to the Plan.</font></div><div><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:63.621%"><tr><td style="width:1.0%"></td><td style="width:7.716%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:13.761%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:75.223%"></td><td style="width:0.1%"></td></tr><tr style="height:15pt"><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td></tr><tr><td colspan="9" style="padding:2px 1pt;text-align:left;vertical-align:top"><div><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:112%">CIENA CORPORATION</font></div></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><div><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:112%">By&#58;</font></div></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Name&#58;</font></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:112%">&#47;S&#47;  Sheela Kosaraju</font></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Title&#58;</font></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><div><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:112%">SVP, General Counsel and Assistant Secretary</font></div></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Date&#58;</font></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><div><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:112%">Date&#58; March 25, 2024</font></div></td></tr></table></div><div><font><br></font></div><div><font><br></font></div><div style="height:72pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div><font><br></font></div></div></div></body></html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.SCH
<SEQUENCE>3
<FILENAME>cien-20240321.xsd
<DESCRIPTION>XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT
<TEXT>
<XBRL>
<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2024 Workiva-->
<!--r:72ced301-bbf6-4039-b2a4-cb0eaa1f86f0,g:e79a7652-e8dc-4ae2-bbe3-307dd1cd83c6-->
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:cien="http://www.ciena.com/20240321" attributeFormDefault="unqualified" elementFormDefault="qualified" targetNamespace="http://www.ciena.com/20240321">
  <xs:import namespace="http://www.w3.org/1999/xlink" schemaLocation="http://www.xbrl.org/2003/xlink-2003-12-31.xsd"/>
  <xs:import namespace="http://www.xbrl.org/2003/instance" schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd"/>
  <xs:import namespace="http://www.xbrl.org/2003/linkbase" schemaLocation="http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd"/>
  <xs:import namespace="http://xbrl.sec.gov/dei/2023" schemaLocation="https://xbrl.sec.gov/dei/2023/dei-2023.xsd"/>
  <xs:annotation>
    <xs:appinfo>
      <link:linkbaseRef xmlns:xlink="http://www.w3.org/1999/xlink" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="cien-20240321_pre.xml" xlink:role="http://www.xbrl.org/2003/role/presentationLinkbaseRef" xlink:type="simple"/>
      <link:linkbaseRef xmlns:xlink="http://www.w3.org/1999/xlink" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="cien-20240321_lab.xml" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef" xlink:type="simple"/>
      <link:roleType id="CoverPage" roleURI="http://www.ciena.com/role/CoverPage">
        <link:definition>0000001 - Document - Cover Page</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
    </xs:appinfo>
  </xs:annotation>
</xs:schema>
</XBRL>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.LAB
<SEQUENCE>4
<FILENAME>cien-20240321_lab.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT
<TEXT>
<XBRL>
<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2024 Workiva-->
<!--r:72ced301-bbf6-4039-b2a4-cb0eaa1f86f0,g:e79a7652-e8dc-4ae2-bbe3-307dd1cd83c6-->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedPeriodStartLabel" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedPeriodStartLabel"/>
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/netLabel" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/net-2009-12-16.xsd#netLabel"/>
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedNetLabel" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedNetLabel"/>
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedTerseLabel"/>
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedPeriodEndLabel" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedPeriodEndLabel"/>
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedLabel"/>
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedTotalLabel"/>
  <link:labelLink xlink:role="http://www.xbrl.org/2003/role/link" xlink:type="extended">
    <link:label id="lab_dei_SecurityExchangeName_db5eabdf-d665-460d-96a4-74505e642886_terseLabel_en-US" xlink:label="lab_dei_SecurityExchangeName" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Security Exchange Name</link:label>
    <link:label id="lab_dei_SecurityExchangeName_label_en-US" xlink:label="lab_dei_SecurityExchangeName" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Security Exchange Name</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SecurityExchangeName" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_SecurityExchangeName"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_SecurityExchangeName" xlink:to="lab_dei_SecurityExchangeName" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_Security12bTitle_df88aafb-ae9d-45cf-87f4-54bd74b722a4_terseLabel_en-US" xlink:label="lab_dei_Security12bTitle" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Title of 12(b) Security</link:label>
    <link:label id="lab_dei_Security12bTitle_label_en-US" xlink:label="lab_dei_Security12bTitle" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Title of 12(b) Security</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_Security12bTitle" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_Security12bTitle"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_Security12bTitle" xlink:to="lab_dei_Security12bTitle" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_WrittenCommunications_1d88c7db-8e68-4715-b5d7-e7f1236e8c40_terseLabel_en-US" xlink:label="lab_dei_WrittenCommunications" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Written Communications</link:label>
    <link:label id="lab_dei_WrittenCommunications_label_en-US" xlink:label="lab_dei_WrittenCommunications" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Written Communications</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_WrittenCommunications" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_WrittenCommunications"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_WrittenCommunications" xlink:to="lab_dei_WrittenCommunications" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_LocalPhoneNumber_6b780989-6155-4c4c-a3df-092e127fb4d2_terseLabel_en-US" xlink:label="lab_dei_LocalPhoneNumber" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Local Phone Number</link:label>
    <link:label id="lab_dei_LocalPhoneNumber_label_en-US" xlink:label="lab_dei_LocalPhoneNumber" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Local Phone Number</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LocalPhoneNumber" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_LocalPhoneNumber"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_LocalPhoneNumber" xlink:to="lab_dei_LocalPhoneNumber" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_TradingSymbol_9e307cfc-503f-49ad-be45-864ba7b30805_terseLabel_en-US" xlink:label="lab_dei_TradingSymbol" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Trading Symbol</link:label>
    <link:label id="lab_dei_TradingSymbol_label_en-US" xlink:label="lab_dei_TradingSymbol" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Trading Symbol</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_TradingSymbol" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_TradingSymbol"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_TradingSymbol" xlink:to="lab_dei_TradingSymbol" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityIncorporationStateCountryCode_e6e98468-452f-407c-abb5-015ca287005c_terseLabel_en-US" xlink:label="lab_dei_EntityIncorporationStateCountryCode" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Incorporation, State or Country Code</link:label>
    <link:label id="lab_dei_EntityIncorporationStateCountryCode_label_en-US" xlink:label="lab_dei_EntityIncorporationStateCountryCode" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Incorporation, State or Country Code</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityIncorporationStateCountryCode" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityIncorporationStateCountryCode"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityIncorporationStateCountryCode" xlink:to="lab_dei_EntityIncorporationStateCountryCode" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityAddressStateOrProvince_c0c66853-c01d-45f6-a42e-7f4319287e96_terseLabel_en-US" xlink:label="lab_dei_EntityAddressStateOrProvince" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Address, State or Province</link:label>
    <link:label id="lab_dei_EntityAddressStateOrProvince_label_en-US" xlink:label="lab_dei_EntityAddressStateOrProvince" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Address, State or Province</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressStateOrProvince" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityAddressStateOrProvince"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityAddressStateOrProvince" xlink:to="lab_dei_EntityAddressStateOrProvince" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_PreCommencementIssuerTenderOffer_4f8361c7-5598-4181-963d-6d387b07b055_terseLabel_en-US" xlink:label="lab_dei_PreCommencementIssuerTenderOffer" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Pre-commencement Issuer Tender Offer</link:label>
    <link:label id="lab_dei_PreCommencementIssuerTenderOffer_label_en-US" xlink:label="lab_dei_PreCommencementIssuerTenderOffer" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Pre-commencement Issuer Tender Offer</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementIssuerTenderOffer" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_PreCommencementIssuerTenderOffer"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_PreCommencementIssuerTenderOffer" xlink:to="lab_dei_PreCommencementIssuerTenderOffer" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_DocumentPeriodEndDate_4934efa3-9b0f-4845-84df-268f11cdbf9b_terseLabel_en-US" xlink:label="lab_dei_DocumentPeriodEndDate" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Document Period End Date</link:label>
    <link:label id="lab_dei_DocumentPeriodEndDate_label_en-US" xlink:label="lab_dei_DocumentPeriodEndDate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Document Period End Date</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentPeriodEndDate" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_DocumentPeriodEndDate"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentPeriodEndDate" xlink:to="lab_dei_DocumentPeriodEndDate" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_CoverAbstract_980298b8-03ca-49cb-a98b-c2a89096ba05_terseLabel_en-US" xlink:label="lab_dei_CoverAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cover [Abstract]</link:label>
    <link:label id="lab_dei_CoverAbstract_label_en-US" xlink:label="lab_dei_CoverAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cover [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CoverAbstract" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_CoverAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_CoverAbstract" xlink:to="lab_dei_CoverAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityEmergingGrowthCompany_89f149f9-c850-49c3-be6e-d82de56b5e2f_terseLabel_en-US" xlink:label="lab_dei_EntityEmergingGrowthCompany" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Emerging Growth Company</link:label>
    <link:label id="lab_dei_EntityEmergingGrowthCompany_label_en-US" xlink:label="lab_dei_EntityEmergingGrowthCompany" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Emerging Growth Company</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityEmergingGrowthCompany" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityEmergingGrowthCompany"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityEmergingGrowthCompany" xlink:to="lab_dei_EntityEmergingGrowthCompany" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_PreCommencementTenderOffer_1e3e3d08-f5b8-458e-91f2-8afb459796cf_terseLabel_en-US" xlink:label="lab_dei_PreCommencementTenderOffer" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Pre-commencement Tender Offer</link:label>
    <link:label id="lab_dei_PreCommencementTenderOffer_label_en-US" xlink:label="lab_dei_PreCommencementTenderOffer" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Pre-commencement Tender Offer</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementTenderOffer" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_PreCommencementTenderOffer"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_PreCommencementTenderOffer" xlink:to="lab_dei_PreCommencementTenderOffer" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_SolicitingMaterial_149ccc1d-3fcf-4f01-b2ef-9409baa70ef7_terseLabel_en-US" xlink:label="lab_dei_SolicitingMaterial" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Soliciting Material</link:label>
    <link:label id="lab_dei_SolicitingMaterial_label_en-US" xlink:label="lab_dei_SolicitingMaterial" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Soliciting Material</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SolicitingMaterial" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_SolicitingMaterial"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_SolicitingMaterial" xlink:to="lab_dei_SolicitingMaterial" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_CityAreaCode_26240a65-e00a-4b98-a527-39c80263ca6b_terseLabel_en-US" xlink:label="lab_dei_CityAreaCode" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">City Area Code</link:label>
    <link:label id="lab_dei_CityAreaCode_label_en-US" xlink:label="lab_dei_CityAreaCode" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">City Area Code</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CityAreaCode" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_CityAreaCode"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_CityAreaCode" xlink:to="lab_dei_CityAreaCode" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityAddressPostalZipCode_ff68eb02-befb-41ba-a8bb-66db18c8bfcd_terseLabel_en-US" xlink:label="lab_dei_EntityAddressPostalZipCode" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Address, Postal Zip Code</link:label>
    <link:label id="lab_dei_EntityAddressPostalZipCode_label_en-US" xlink:label="lab_dei_EntityAddressPostalZipCode" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Address, Postal Zip Code</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressPostalZipCode" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityAddressPostalZipCode"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityAddressPostalZipCode" xlink:to="lab_dei_EntityAddressPostalZipCode" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_DocumentType_9b4b1119-18fb-41eb-8ecf-8a089f45dcf1_terseLabel_en-US" xlink:label="lab_dei_DocumentType" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Document Type</link:label>
    <link:label id="lab_dei_DocumentType_label_en-US" xlink:label="lab_dei_DocumentType" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Document Type</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentType" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_DocumentType"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentType" xlink:to="lab_dei_DocumentType" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_AmendmentFlag_258ffd53-762c-4aba-bdb5-5e982fe6a9d9_terseLabel_en-US" xlink:label="lab_dei_AmendmentFlag" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Amendment Flag</link:label>
    <link:label id="lab_dei_AmendmentFlag_label_en-US" xlink:label="lab_dei_AmendmentFlag" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Amendment Flag</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AmendmentFlag" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_AmendmentFlag"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_AmendmentFlag" xlink:to="lab_dei_AmendmentFlag" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityCentralIndexKey_b7ea615f-7830-4dc5-a796-732dce4e8e2d_terseLabel_en-US" xlink:label="lab_dei_EntityCentralIndexKey" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Central Index Key</link:label>
    <link:label id="lab_dei_EntityCentralIndexKey_label_en-US" xlink:label="lab_dei_EntityCentralIndexKey" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Central Index Key</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCentralIndexKey" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityCentralIndexKey"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityCentralIndexKey" xlink:to="lab_dei_EntityCentralIndexKey" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityFileNumber_957162ff-6723-47f9-8b21-21f0113df855_terseLabel_en-US" xlink:label="lab_dei_EntityFileNumber" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity File Number</link:label>
    <link:label id="lab_dei_EntityFileNumber_label_en-US" xlink:label="lab_dei_EntityFileNumber" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity File Number</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityFileNumber" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityFileNumber"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityFileNumber" xlink:to="lab_dei_EntityFileNumber" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityAddressCityOrTown_6a6462f9-f7ac-4ab0-ab0b-4290a2860b42_terseLabel_en-US" xlink:label="lab_dei_EntityAddressCityOrTown" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Address, City or Town</link:label>
    <link:label id="lab_dei_EntityAddressCityOrTown_label_en-US" xlink:label="lab_dei_EntityAddressCityOrTown" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Address, City or Town</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressCityOrTown" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityAddressCityOrTown"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityAddressCityOrTown" xlink:to="lab_dei_EntityAddressCityOrTown" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityTaxIdentificationNumber_87225793-6a25-4154-b48f-8e1ffd95e1d9_terseLabel_en-US" xlink:label="lab_dei_EntityTaxIdentificationNumber" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Tax Identification Number</link:label>
    <link:label id="lab_dei_EntityTaxIdentificationNumber_label_en-US" xlink:label="lab_dei_EntityTaxIdentificationNumber" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Tax Identification Number</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityTaxIdentificationNumber" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityTaxIdentificationNumber"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityTaxIdentificationNumber" xlink:to="lab_dei_EntityTaxIdentificationNumber" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityAddressAddressLine1_7f2a3104-a9ef-4b46-bde2-46f972f6de3c_terseLabel_en-US" xlink:label="lab_dei_EntityAddressAddressLine1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Address, Address Line One</link:label>
    <link:label id="lab_dei_EntityAddressAddressLine1_label_en-US" xlink:label="lab_dei_EntityAddressAddressLine1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Address, Address Line One</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine1" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityAddressAddressLine1"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityAddressAddressLine1" xlink:to="lab_dei_EntityAddressAddressLine1" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityRegistrantName_89eb9100-b1e0-43dd-ae33-0aa10478a767_terseLabel_en-US" xlink:label="lab_dei_EntityRegistrantName" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Registrant Name</link:label>
    <link:label id="lab_dei_EntityRegistrantName_label_en-US" xlink:label="lab_dei_EntityRegistrantName" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Registrant Name</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityRegistrantName" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityRegistrantName"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityRegistrantName" xlink:to="lab_dei_EntityRegistrantName" xlink:type="arc" order="1"/>
  </link:labelLink>
</link:linkbase>
</XBRL>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.PRE
<SEQUENCE>5
<FILENAME>cien-20240321_pre.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT
<TEXT>
<XBRL>
<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2024 Workiva-->
<!--r:72ced301-bbf6-4039-b2a4-cb0eaa1f86f0,g:e79a7652-e8dc-4ae2-bbe3-307dd1cd83c6-->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:roleRef roleURI="http://www.ciena.com/role/CoverPage" xlink:type="simple" xlink:href="cien-20240321.xsd#CoverPage"/>
  <link:presentationLink xlink:role="http://www.ciena.com/role/CoverPage" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_dei_CoverAbstract_083a6df0-5792-4d69-a441-b4b57be7f590" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_CoverAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentType_adecf2f8-7db9-4b39-bd11-d0eae876d30f" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_DocumentType"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_083a6df0-5792-4d69-a441-b4b57be7f590" xlink:to="loc_dei_DocumentType_adecf2f8-7db9-4b39-bd11-d0eae876d30f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentPeriodEndDate_272ef19a-8879-4fe3-a363-93c99269930f" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_DocumentPeriodEndDate"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_083a6df0-5792-4d69-a441-b4b57be7f590" xlink:to="loc_dei_DocumentPeriodEndDate_272ef19a-8879-4fe3-a363-93c99269930f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityRegistrantName_834414c0-abca-4c0d-97a8-c933bd2ad112" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityRegistrantName"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_083a6df0-5792-4d69-a441-b4b57be7f590" xlink:to="loc_dei_EntityRegistrantName_834414c0-abca-4c0d-97a8-c933bd2ad112" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityFileNumber_e37f3972-6ce3-48d4-a75b-b935d7c71d35" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityFileNumber"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_083a6df0-5792-4d69-a441-b4b57be7f590" xlink:to="loc_dei_EntityFileNumber_e37f3972-6ce3-48d4-a75b-b935d7c71d35" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityIncorporationStateCountryCode_662307ce-e59b-444e-8dbb-58ddf45c6c37" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityIncorporationStateCountryCode"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_083a6df0-5792-4d69-a441-b4b57be7f590" xlink:to="loc_dei_EntityIncorporationStateCountryCode_662307ce-e59b-444e-8dbb-58ddf45c6c37" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityTaxIdentificationNumber_71df17f1-db80-4055-8f52-578c49140753" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityTaxIdentificationNumber"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_083a6df0-5792-4d69-a441-b4b57be7f590" xlink:to="loc_dei_EntityTaxIdentificationNumber_71df17f1-db80-4055-8f52-578c49140753" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine1_4ccdc207-12db-4685-89aa-723c6ecda996" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityAddressAddressLine1"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_083a6df0-5792-4d69-a441-b4b57be7f590" xlink:to="loc_dei_EntityAddressAddressLine1_4ccdc207-12db-4685-89aa-723c6ecda996" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressCityOrTown_244276ed-8765-46e4-aac4-b5a235fc52d0" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityAddressCityOrTown"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_083a6df0-5792-4d69-a441-b4b57be7f590" xlink:to="loc_dei_EntityAddressCityOrTown_244276ed-8765-46e4-aac4-b5a235fc52d0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressStateOrProvince_f82f53cb-a4ea-42b5-86b6-b9268bc1e92f" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityAddressStateOrProvince"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_083a6df0-5792-4d69-a441-b4b57be7f590" xlink:to="loc_dei_EntityAddressStateOrProvince_f82f53cb-a4ea-42b5-86b6-b9268bc1e92f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressPostalZipCode_84fa46b0-56a8-4668-8494-becd34bf1b08" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityAddressPostalZipCode"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_083a6df0-5792-4d69-a441-b4b57be7f590" xlink:to="loc_dei_EntityAddressPostalZipCode_84fa46b0-56a8-4668-8494-becd34bf1b08" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CityAreaCode_acf5137a-290a-45f7-9ae6-34789c0e52af" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_CityAreaCode"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_083a6df0-5792-4d69-a441-b4b57be7f590" xlink:to="loc_dei_CityAreaCode_acf5137a-290a-45f7-9ae6-34789c0e52af" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LocalPhoneNumber_26228fe6-919d-47ca-8d69-f4cf111355f8" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_LocalPhoneNumber"/>
    <link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_083a6df0-5792-4d69-a441-b4b57be7f590" xlink:to="loc_dei_LocalPhoneNumber_26228fe6-919d-47ca-8d69-f4cf111355f8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_WrittenCommunications_22a52174-60fd-4f71-a17f-675b33b82d4c" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_WrittenCommunications"/>
    <link:presentationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_083a6df0-5792-4d69-a441-b4b57be7f590" xlink:to="loc_dei_WrittenCommunications_22a52174-60fd-4f71-a17f-675b33b82d4c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SolicitingMaterial_4b9a0fb1-93f8-45c4-b642-20a6d0a40646" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_SolicitingMaterial"/>
    <link:presentationArc order="14" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_083a6df0-5792-4d69-a441-b4b57be7f590" xlink:to="loc_dei_SolicitingMaterial_4b9a0fb1-93f8-45c4-b642-20a6d0a40646" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementTenderOffer_d2995112-3f40-44a7-adc5-9db7aef42998" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_PreCommencementTenderOffer"/>
    <link:presentationArc order="15" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_083a6df0-5792-4d69-a441-b4b57be7f590" xlink:to="loc_dei_PreCommencementTenderOffer_d2995112-3f40-44a7-adc5-9db7aef42998" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementIssuerTenderOffer_fa29aef6-fd3b-4b6b-8971-c3850e8054a3" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_PreCommencementIssuerTenderOffer"/>
    <link:presentationArc order="16" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_083a6df0-5792-4d69-a441-b4b57be7f590" xlink:to="loc_dei_PreCommencementIssuerTenderOffer_fa29aef6-fd3b-4b6b-8971-c3850e8054a3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_Security12bTitle_7e706507-ee0e-4370-9a67-9dcb92dfa713" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_Security12bTitle"/>
    <link:presentationArc order="17" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_083a6df0-5792-4d69-a441-b4b57be7f590" xlink:to="loc_dei_Security12bTitle_7e706507-ee0e-4370-9a67-9dcb92dfa713" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_TradingSymbol_5732f589-f77b-4c04-8aee-5d9fef62fa88" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_TradingSymbol"/>
    <link:presentationArc order="18" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_083a6df0-5792-4d69-a441-b4b57be7f590" xlink:to="loc_dei_TradingSymbol_5732f589-f77b-4c04-8aee-5d9fef62fa88" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SecurityExchangeName_a1e0f37e-4637-45df-987e-42ac92365a54" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_SecurityExchangeName"/>
    <link:presentationArc order="19" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_083a6df0-5792-4d69-a441-b4b57be7f590" xlink:to="loc_dei_SecurityExchangeName_a1e0f37e-4637-45df-987e-42ac92365a54" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityEmergingGrowthCompany_813bfdbb-d9a2-4c07-8df4-681b8cdd37bd" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityEmergingGrowthCompany"/>
    <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_083a6df0-5792-4d69-a441-b4b57be7f590" xlink:to="loc_dei_EntityEmergingGrowthCompany_813bfdbb-d9a2-4c07-8df4-681b8cdd37bd" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCentralIndexKey_84bc5099-392a-4682-bcf6-2d200b20cf7b" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityCentralIndexKey"/>
    <link:presentationArc order="21" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_083a6df0-5792-4d69-a441-b4b57be7f590" xlink:to="loc_dei_EntityCentralIndexKey_84bc5099-392a-4682-bcf6-2d200b20cf7b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AmendmentFlag_593e8744-579c-4a02-9acc-ace09dd53464" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_AmendmentFlag"/>
    <link:presentationArc order="22" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_083a6df0-5792-4d69-a441-b4b57be7f590" xlink:to="loc_dei_AmendmentFlag_593e8744-579c-4a02-9acc-ace09dd53464" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
</link:linkbase>
</XBRL>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>7
<FILENAME>R1.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="include/report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.24.1</span><table class="report" border="0" cellspacing="2" id="idm140075123858144">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Cover Page<br></strong></div></th>
<th class="th"><div>Mar. 21, 2024</div></th>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_CoverAbstract', window );"><strong>Cover [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_DocumentType', window );">Document Type</a></td>
<td class="text">8-K<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_DocumentPeriodEndDate', window );">Document Period End Date</a></td>
<td class="text">Mar. 21,  2024<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntityRegistrantName', window );">Entity Registrant Name</a></td>
<td class="text">Ciena Corp<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntityFileNumber', window );">Entity File Number</a></td>
<td class="text">001-36250<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntityIncorporationStateCountryCode', window );">Entity Incorporation, State or Country Code</a></td>
<td class="text">DE<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntityTaxIdentificationNumber', window );">Entity Tax Identification Number</a></td>
<td class="text">23-2725311<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntityAddressAddressLine1', window );">Entity Address, Address Line One</a></td>
<td class="text">7035 Ridge Road<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntityAddressCityOrTown', window );">Entity Address, City or Town</a></td>
<td class="text">Hanover<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntityAddressStateOrProvince', window );">Entity Address, State or Province</a></td>
<td class="text">MD<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntityAddressPostalZipCode', window );">Entity Address, Postal Zip Code</a></td>
<td class="text">21076<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_CityAreaCode', window );">City Area Code</a></td>
<td class="text">410<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_LocalPhoneNumber', window );">Local Phone Number</a></td>
<td class="text">694-5700<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_WrittenCommunications', window );">Written Communications</a></td>
<td class="text">false<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_SolicitingMaterial', window );">Soliciting Material</a></td>
<td class="text">false<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_PreCommencementTenderOffer', window );">Pre-commencement Tender Offer</a></td>
<td class="text">false<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_PreCommencementIssuerTenderOffer', window );">Pre-commencement Issuer Tender Offer</a></td>
<td class="text">false<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_Security12bTitle', window );">Title of 12(b) Security</a></td>
<td class="text">Common stock, $0.01 par value<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_TradingSymbol', window );">Trading Symbol</a></td>
<td class="text">CIEN<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_SecurityExchangeName', window );">Security Exchange Name</a></td>
<td class="text">NYSE<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntityEmergingGrowthCompany', window );">Entity Emerging Growth Company</a></td>
<td class="text">false<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntityCentralIndexKey', window );">Entity Central Index Key</a></td>
<td class="text">0000936395<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_AmendmentFlag', window );">Amendment Flag</a></td>
<td class="text">false<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_AmendmentFlag">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the XBRL content amends previously-filed or accepted submission.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_AmendmentFlag</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_CityAreaCode">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Area code of city</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_CityAreaCode</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_CoverAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Cover page.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_CoverAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_DocumentPeriodEndDate">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>For the EDGAR submission types of Form 8-K: the date of the report, the date of the earliest event reported; for the EDGAR submission types of Form N-1A: the filing date; for all other submission types: the end of the reporting or transition period.  The format of the date is YYYY-MM-DD.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_DocumentPeriodEndDate</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:dateItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_DocumentType">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_DocumentType</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:submissionTypeItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityAddressAddressLine1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Address Line 1 such as Attn, Building Name, Street Name</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityAddressAddressLine1</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityAddressCityOrTown">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Name of the City or Town</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityAddressCityOrTown</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityAddressPostalZipCode">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Code for the postal or zip code</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityAddressPostalZipCode</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityAddressStateOrProvince">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Name of the state or province.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityAddressStateOrProvince</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:stateOrProvinceItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityCentralIndexKey">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityCentralIndexKey</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:centralIndexKeyItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityEmergingGrowthCompany">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Indicate if registrant meets the emerging growth company criteria.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityEmergingGrowthCompany</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityFileNumber">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Commission file number. The field allows up to 17 characters. The prefix may contain 1-3 digits, the sequence number may contain 1-8 digits, the optional suffix may contain 1-4 characters, and the fields are separated with a hyphen.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityFileNumber</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:fileNumberItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityIncorporationStateCountryCode">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Two-character EDGAR code representing the state or country of incorporation.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityIncorporationStateCountryCode</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:edgarStateCountryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityRegistrantName">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityRegistrantName</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityTaxIdentificationNumber">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The Tax Identification Number (TIN), also known as an Employer Identification Number (EIN), is a unique 9-digit value assigned by the IRS.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityTaxIdentificationNumber</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:employerIdItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_LocalPhoneNumber">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Local phone number for entity.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_LocalPhoneNumber</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_PreCommencementIssuerTenderOffer">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 13e<br> -Subsection 4c<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_PreCommencementIssuerTenderOffer</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_PreCommencementTenderOffer">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 14d<br> -Subsection 2b<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_PreCommencementTenderOffer</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_Security12bTitle">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Title of a 12(b) registered security.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 12<br> -Subsection b<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_Security12bTitle</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:securityTitleItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_SecurityExchangeName">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Name of the Exchange on which a security is registered.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 12<br> -Subsection d1-1<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_SecurityExchangeName</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:edgarExchangeCodeItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_SolicitingMaterial">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as soliciting material pursuant to Rule 14a-12 under the Exchange Act.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Section 14a<br> -Number 240<br> -Subsection 12<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_SolicitingMaterial</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_TradingSymbol">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Trading symbol of an instrument as listed on an exchange.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_TradingSymbol</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:tradingSymbolItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_WrittenCommunications">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as written communications pursuant to Rule 425 under the Securities Act.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Securities Act<br> -Number 230<br> -Section 425<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_WrittenCommunications</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EXCEL
<SEQUENCE>8
<FILENAME>Financial_Report.xlsx
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
begin 644 Financial_Report.xlsx
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M=]W3CHG&K=!X#;[Q3X?#KHG&J]!TZVDF)_VN:Z3I%FA"1N/K>A(5M>5 TR
M6'!VULS2 Y9>*?IUE!K9';O=05SP6.XYB1'^QL4$UFG2&98T1G*=D 4. #?$
MT4Q0?*]!MHK@PI+27)#6SRFU4!H(FLB!]4>"(<7<K_WUE[O)I#-ZG7TZSFN4
M?VFK :?MNYO/D_QSZ.2?IY/734+.<+PL"?'[(UMAAR=N.Q-R.AQG0GS/]O:1
MI24RS^_Y"NM./&<?5I:P7<_/Y)Z,<B.[W?98??9/1VXCUZG LR+7E$8D19_(
M+;KD$3BU20TR$S\(G8:8:E < J0),9:AAOBTQJP1X!-]M[X(R-^-B/>K;YH]
M5Z%82=J$^!!&&N*<<^9ST6S[!Z5&T?95O-RCEU@5 9<8WS2J-2S%UGB5P/&M
MG#P=$Q+-E L&08:7)"82J3E^34@3_BNEVOZ<TT#PE"\D^DJ1CVFS(Z=T)LWH
M,QK!1J\;=8=HTCQZ_@7YG#4*')$;'0)G&[-&(81IN_ >KR2.FJW"$2M"/F(9
M-AIRM1:!MG&IA&!:$L;1>$[2M!'\6:PUDSY@R.S-D77.UI$.$9)>-T(^8LZ+
MD!&_'H8X2IKMHG%8!/V>7L-)P>B"RV;]N'Z&U3-L+([W1]072N0/)J<_Z3(T
M!Z.:60F]A%9JGZJ'-#ZH'C(*!?&Y'C[E>G@*-Y;&O%"N@GL!_]':-\*K^(+
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MU4#E/]O4#6CV#30<D05>,9FV-J/D3@H\W/[O#;#"Q([A[8N_ 5!+ P04
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MCMQC)8QQ8K3^-8+)#^Q^ %!+ P04    " !83GI8&445]3<!   G @  #P
M 'AL+W=O<FMB;V]K+GAM;(U1T6[", S\E2H?L!:T(0U17D#;D*8-C8GWT+K4
M(HDKQX6-KY_;JAK27O:4W-FZW%T6%^+3@>B4?'D78FYJD6:>IK&HP=MX1PT$
MG53$WHI"/J:Q8;!EK '$NW2:9;/46PQFN1BUMIS> A(H!"DHV1%[A$O\G7<P
M.6/$ SJ4[]ST=P<F\1C0XQ7*W&0FB35=7HCQ2D&LVQ5,SN5F,@SVP(+%'WK7
MF?RTA]@S8@\?5HWD9I:I8(4<I=_H]:UZ/(,N#Z@5>D(GP&LK\,S4-AB.G8RF
M2&]B]#V,YU#BG/]3(U45%K"FHO409.B1P74&0ZRQB28)UD-N5G0&3K;V"%TH
M?653#@%%G=W4Q7/4 6_*P>-HK(0* Y1OJA65UY**+2?=T>M,[Q\FCUI&Z]Q*
MN??P2K8<<XY_M/P!4$L#!!0    ( %A.>E@D'INBK0   /@!   :    >&PO
M7W)E;',O=V]R:V)O;VLN>&UL+G)E;'.UD3T.@S ,A:\2Y0 U4*E#!4Q=6"LN
M$ 7S(Q(2Q:X*MR^% 9 Z=&&RGBU_[\E.GV@4=VZ@MO,D1FL&RF3+[.\ I%NT
MBB[.XS!/:A>LXEF&!KS2O6H0DBBZ0=@S9)[NF:*<//Y#='7=:7PX_;(X\ \P
MO%WHJ45D*4H5&N1,PFBV-L%2XLM,EJ*H,AF**I9P6B#BR2!M:59]L$].M.=Y
M%S?W1:[-XPFNWPQP>'3^ 5!+ P04    " !83GI899!YDAD!  #/ P  $P
M %M#;VYT96YT7U1Y<&5S72YX;6RMDTU.PS 0A:\295LE+BQ8H*8;8 M=< %C
M3QJK_I-G6M+;,T[:2J 2%85-K'C>O,^>EZS>CQ&PZ)WUV)0=47P4 E4'3F(=
M(GBNM"$Y2?R:MB)*M9-;$/?+Y8-0P1-XJBA[E.O5,[1R;ZEXZ7D;3?!-F<!B
M63R-PLQJ2AFC-4H2U\7!ZQ^4ZD2HN7/08&<B+EA0BJN$7/D=<.I[.T!*1D.Q
MD8E>I6.5Z*U .EK >MKBRAE#VQH%.JB]XY8:8P*IL0,@9^O1=#%-)IXPC,^[
MV?S!9@K(RDT*$3FQ!'_'G2/)W55D(TADIJ]X(;+U[/M!3EN#OI'-X_T,:3?D
M@6)8YL_X>\87_QO.\1'"[K\_L;S63AI_YHOA/UY_ 5!+ 0(4 Q0    ( %A.
M>E@'04UB@0   +$    0              "  0    !D;V-0<F]P<R]A<' N
M>&UL4$L! A0#%     @ 6$YZ6&/L*N_O    *P(  !$              ( !
MKP   &1O8U!R;W!S+V-O<F4N>&UL4$L! A0#%     @ 6$YZ6)E<G",0!@
MG"<  !,              ( !S0$  'AL+W1H96UE+W1H96UE,2YX;6Q02P$"
M% ,4    " !83GI8??>=V#,$  !E$   &               @($."   >&PO
M=V]R:W-H965T<R]S:&5E=#$N>&UL4$L! A0#%     @ 6$YZ6)^@&_"Q @
MX@P   T              ( !=PP  'AL+W-T>6QE<RYX;6Q02P$"% ,4
M" !83GI8EXJ[',     3 @  "P              @ %3#P  7W)E;',O+G)E
M;'-02P$"% ,4    " !83GI8&445]3<!   G @  #P              @ $\
M$   >&PO=V]R:V)O;VLN>&UL4$L! A0#%     @ 6$YZ6"0>FZ*M    ^ $
M !H              ( !H!$  'AL+U]R96QS+W=O<FMB;V]K+GAM;"YR96QS
M4$L! A0#%     @ 6$YZ6&60>9(9 0  SP,  !,              ( !A1(
J %M#;VYT96YT7U1Y<&5S72YX;6Q02P4&      D "0 ^ @  SQ,

end
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>9
<FILENAME>Show.js
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
// Edgar(tm) Renderer was created by staff of the U.S. Securities and Exchange Commission.  Data and content created by government employees within the scope of their employment are not subject to domestic copyright protection. 17 U.S.C. 105.
var Show={};Show.LastAR=null,Show.showAR=function(a,r,w){if(Show.LastAR)Show.hideAR();var e=a;while(e&&e.nodeName!='TABLE')e=e.nextSibling;if(!e||e.nodeName!='TABLE'){var ref=((window)?w.document:document).getElementById(r);if(ref){e=ref.cloneNode(!0);
e.removeAttribute('id');a.parentNode.appendChild(e)}}
if(e)e.style.display='block';Show.LastAR=e};Show.hideAR=function(){Show.LastAR.style.display='none'};Show.toggleNext=function(a){var e=a;while(e.nodeName!='DIV')e=e.nextSibling;if(!e.style){}else if(!e.style.display){}else{var d,p_;if(e.style.display=='none'){d='block';p='-'}else{d='none';p='+'}
e.style.display=d;if(a.textContent){a.textContent=p+a.textContent.substring(1)}else{a.innerText=p+a.innerText.substring(1)}}}
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>10
<FILENAME>report.css
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
/* Updated 2009-11-04 */
/* v2.2.0.24 */

/* DefRef Styles */
..report table.authRefData{
	background-color: #def;
	border: 2px solid #2F4497;
	font-size: 1em;
	position: absolute;
}

..report table.authRefData a {
	display: block;
	font-weight: bold;
}

..report table.authRefData p {
	margin-top: 0px;
}

..report table.authRefData .hide {
	background-color: #2F4497;
	padding: 1px 3px 0px 0px;
	text-align: right;
}

..report table.authRefData .hide a:hover {
	background-color: #2F4497;
}

..report table.authRefData .body {
	height: 150px;
	overflow: auto;
	width: 400px;
}

..report table.authRefData table{
	font-size: 1em;
}

/* Report Styles */
..pl a, .pl a:visited {
	color: black;
	text-decoration: none;
}

/* table */
..report {
	background-color: white;
	border: 2px solid #acf;
	clear: both;
	color: black;
	font: normal 8pt Helvetica, Arial, san-serif;
	margin-bottom: 2em;
}

..report hr {
	border: 1px solid #acf;
}

/* Top labels */
..report th {
	background-color: #acf;
	color: black;
	font-weight: bold;
	text-align: center;
}

..report th.void	{
	background-color: transparent;
	color: #000000;
	font: bold 10pt Helvetica, Arial, san-serif;
	text-align: left;
}

..report .pl {
	text-align: left;
	vertical-align: top;
	white-space: normal;
	width: 200px;
	white-space: normal; /* word-wrap: break-word; */
}

..report td.pl a.a {
	cursor: pointer;
	display: block;
	width: 200px;
	overflow: hidden;
}

..report td.pl div.a {
	width: 200px;
}

..report td.pl a:hover {
	background-color: #ffc;
}

/* Header rows... */
..report tr.rh {
	background-color: #acf;
	color: black;
	font-weight: bold;
}

/* Calendars... */
..report .rc {
	background-color: #f0f0f0;
}

/* Even rows... */
..report .re, .report .reu {
	background-color: #def;
}

..report .reu td {
	border-bottom: 1px solid black;
}

/* Odd rows... */
..report .ro, .report .rou {
	background-color: white;
}

..report .rou td {
	border-bottom: 1px solid black;
}

..report .rou table td, .report .reu table td {
	border-bottom: 0px solid black;
}

/* styles for footnote marker */
..report .fn {
	white-space: nowrap;
}

/* styles for numeric types */
..report .num, .report .nump {
	text-align: right;
	white-space: nowrap;
}

..report .nump {
	padding-left: 2em;
}

..report .nump {
	padding: 0px 0.4em 0px 2em;
}

/* styles for text types */
..report .text {
	text-align: left;
	white-space: normal;
}

..report .text .big {
	margin-bottom: 1em;
	width: 17em;
}

..report .text .more {
	display: none;
}

..report .text .note {
	font-style: italic;
	font-weight: bold;
}

..report .text .small {
	width: 10em;
}

..report sup {
	font-style: italic;
}

..report .outerFootnotes {
	font-size: 1em;
}
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>12
<FILENAME>FilingSummary.xml
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<XML>
<?xml version='1.0' encoding='utf-8'?>
<FilingSummary>
  <Version>3.24.1</Version>
  <ProcessingTime/>
  <ReportFormat>html</ReportFormat>
  <ContextCount>1</ContextCount>
  <ElementCount>22</ElementCount>
  <EntityCount>1</EntityCount>
  <FootnotesReported>false</FootnotesReported>
  <SegmentCount>0</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <TuplesReported>false</TuplesReported>
  <UnitCount>0</UnitCount>
  <MyReports>
    <Report instance="cien-20240321.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R1.htm</HtmlFileName>
      <LongName>0000001 - Document - Cover Page</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ciena.com/role/CoverPage</Role>
      <ShortName>Cover Page</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>1</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <LongName>All Reports</LongName>
      <ReportType>Book</ReportType>
      <ShortName>All Reports</ShortName>
    </Report>
  </MyReports>
  <InputFiles>
    <File doctype="8-K" isOnlyDei="true" original="cien-20240321.htm">cien-20240321.htm</File>
    <File>cien-20240321.xsd</File>
    <File>cien-20240321_lab.xml</File>
    <File>cien-20240321_pre.xml</File>
  </InputFiles>
  <SupplementalFiles/>
  <BaseTaxonomies>
    <BaseTaxonomy items="22">http://xbrl.sec.gov/dei/2023</BaseTaxonomy>
  </BaseTaxonomies>
  <HasPresentationLinkbase>true</HasPresentationLinkbase>
  <HasCalculationLinkbase>false</HasCalculationLinkbase>
</FilingSummary>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>JSON
<SEQUENCE>14
<FILENAME>MetaLinks.json
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
{
 "version": "2.2",
 "instance": {
  "cien-20240321.htm": {
   "nsprefix": "cien",
   "nsuri": "http://www.ciena.com/20240321",
   "dts": {
    "inline": {
     "local": [
      "cien-20240321.htm"
     ]
    },
    "schema": {
     "local": [
      "cien-20240321.xsd"
     ],
     "remote": [
      "http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd",
      "http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd",
      "http://www.xbrl.org/2003/xl-2003-12-31.xsd",
      "http://www.xbrl.org/2003/xlink-2003-12-31.xsd",
      "http://www.xbrl.org/2005/xbrldt-2005.xsd",
      "http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd",
      "http://www.xbrl.org/lrr/role/net-2009-12-16.xsd",
      "https://www.xbrl.org/dtr/type/2022-03-31/types.xsd",
      "https://xbrl.sec.gov/dei/2023/dei-2023.xsd"
     ]
    },
    "labelLink": {
     "local": [
      "cien-20240321_lab.xml"
     ]
    },
    "presentationLink": {
     "local": [
      "cien-20240321_pre.xml"
     ]
    }
   },
   "keyStandard": 22,
   "keyCustom": 0,
   "axisStandard": 0,
   "axisCustom": 0,
   "memberStandard": 0,
   "memberCustom": 0,
   "hidden": {
    "total": 2,
    "http://xbrl.sec.gov/dei/2023": 2
   },
   "contextCount": 1,
   "entityCount": 1,
   "segmentCount": 0,
   "elementCount": 23,
   "unitCount": 0,
   "baseTaxonomies": {
    "http://xbrl.sec.gov/dei/2023": 22
   },
   "report": {
    "R1": {
     "role": "http://www.ciena.com/role/CoverPage",
     "longName": "0000001 - Document - Cover Page",
     "shortName": "Cover Page",
     "isDefault": "true",
     "groupType": "document",
     "subGroupType": "",
     "menuCat": "Cover",
     "order": "1",
     "firstAnchor": {
      "contextRef": "c-1",
      "name": "dei:DocumentType",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "cien-20240321.htm",
      "first": true,
      "unique": true
     },
     "uniqueAnchor": {
      "contextRef": "c-1",
      "name": "dei:DocumentType",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "cien-20240321.htm",
      "first": true,
      "unique": true
     }
    }
   },
   "tag": {
    "dei_AmendmentFlag": {
     "xbrltype": "booleanItemType",
     "nsuri": "http://xbrl.sec.gov/dei/2023",
     "localname": "AmendmentFlag",
     "presentation": [
      "http://www.ciena.com/role/CoverPage"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Amendment Flag",
        "label": "Amendment Flag",
        "documentation": "Boolean flag that is true when the XBRL content amends previously-filed or accepted submission."
       }
      }
     },
     "auth_ref": []
    },
    "dei_CityAreaCode": {
     "xbrltype": "normalizedStringItemType",
     "nsuri": "http://xbrl.sec.gov/dei/2023",
     "localname": "CityAreaCode",
     "presentation": [
      "http://www.ciena.com/role/CoverPage"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "City Area Code",
        "label": "City Area Code",
        "documentation": "Area code of city"
       }
      }
     },
     "auth_ref": []
    },
    "dei_CoverAbstract": {
     "xbrltype": "stringItemType",
     "nsuri": "http://xbrl.sec.gov/dei/2023",
     "localname": "CoverAbstract",
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Cover [Abstract]",
        "label": "Cover [Abstract]",
        "documentation": "Cover page."
       }
      }
     },
     "auth_ref": []
    },
    "dei_DocumentPeriodEndDate": {
     "xbrltype": "dateItemType",
     "nsuri": "http://xbrl.sec.gov/dei/2023",
     "localname": "DocumentPeriodEndDate",
     "presentation": [
      "http://www.ciena.com/role/CoverPage"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Document Period End Date",
        "label": "Document Period End Date",
        "documentation": "For the EDGAR submission types of Form 8-K: the date of the report, the date of the earliest event reported; for the EDGAR submission types of Form N-1A: the filing date; for all other submission types: the end of the reporting or transition period.  The format of the date is YYYY-MM-DD."
       }
      }
     },
     "auth_ref": []
    },
    "dei_DocumentType": {
     "xbrltype": "submissionTypeItemType",
     "nsuri": "http://xbrl.sec.gov/dei/2023",
     "localname": "DocumentType",
     "presentation": [
      "http://www.ciena.com/role/CoverPage"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Document Type",
        "label": "Document Type",
        "documentation": "The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'."
       }
      }
     },
     "auth_ref": []
    },
    "dei_EntityAddressAddressLine1": {
     "xbrltype": "normalizedStringItemType",
     "nsuri": "http://xbrl.sec.gov/dei/2023",
     "localname": "EntityAddressAddressLine1",
     "presentation": [
      "http://www.ciena.com/role/CoverPage"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Entity Address, Address Line One",
        "label": "Entity Address, Address Line One",
        "documentation": "Address Line 1 such as Attn, Building Name, Street Name"
       }
      }
     },
     "auth_ref": []
    },
    "dei_EntityAddressCityOrTown": {
     "xbrltype": "normalizedStringItemType",
     "nsuri": "http://xbrl.sec.gov/dei/2023",
     "localname": "EntityAddressCityOrTown",
     "presentation": [
      "http://www.ciena.com/role/CoverPage"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Entity Address, City or Town",
        "label": "Entity Address, City or Town",
        "documentation": "Name of the City or Town"
       }
      }
     },
     "auth_ref": []
    },
    "dei_EntityAddressPostalZipCode": {
     "xbrltype": "normalizedStringItemType",
     "nsuri": "http://xbrl.sec.gov/dei/2023",
     "localname": "EntityAddressPostalZipCode",
     "presentation": [
      "http://www.ciena.com/role/CoverPage"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Entity Address, Postal Zip Code",
        "label": "Entity Address, Postal Zip Code",
        "documentation": "Code for the postal or zip code"
       }
      }
     },
     "auth_ref": []
    },
    "dei_EntityAddressStateOrProvince": {
     "xbrltype": "stateOrProvinceItemType",
     "nsuri": "http://xbrl.sec.gov/dei/2023",
     "localname": "EntityAddressStateOrProvince",
     "presentation": [
      "http://www.ciena.com/role/CoverPage"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Entity Address, State or Province",
        "label": "Entity Address, State or Province",
        "documentation": "Name of the state or province."
       }
      }
     },
     "auth_ref": []
    },
    "dei_EntityCentralIndexKey": {
     "xbrltype": "centralIndexKeyItemType",
     "nsuri": "http://xbrl.sec.gov/dei/2023",
     "localname": "EntityCentralIndexKey",
     "presentation": [
      "http://www.ciena.com/role/CoverPage"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Entity Central Index Key",
        "label": "Entity Central Index Key",
        "documentation": "A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK."
       }
      }
     },
     "auth_ref": [
      "r1"
     ]
    },
    "dei_EntityEmergingGrowthCompany": {
     "xbrltype": "booleanItemType",
     "nsuri": "http://xbrl.sec.gov/dei/2023",
     "localname": "EntityEmergingGrowthCompany",
     "presentation": [
      "http://www.ciena.com/role/CoverPage"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Entity Emerging Growth Company",
        "label": "Entity Emerging Growth Company",
        "documentation": "Indicate if registrant meets the emerging growth company criteria."
       }
      }
     },
     "auth_ref": [
      "r1"
     ]
    },
    "dei_EntityFileNumber": {
     "xbrltype": "fileNumberItemType",
     "nsuri": "http://xbrl.sec.gov/dei/2023",
     "localname": "EntityFileNumber",
     "presentation": [
      "http://www.ciena.com/role/CoverPage"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Entity File Number",
        "label": "Entity File Number",
        "documentation": "Commission file number. The field allows up to 17 characters. The prefix may contain 1-3 digits, the sequence number may contain 1-8 digits, the optional suffix may contain 1-4 characters, and the fields are separated with a hyphen."
       }
      }
     },
     "auth_ref": []
    },
    "dei_EntityIncorporationStateCountryCode": {
     "xbrltype": "edgarStateCountryItemType",
     "nsuri": "http://xbrl.sec.gov/dei/2023",
     "localname": "EntityIncorporationStateCountryCode",
     "presentation": [
      "http://www.ciena.com/role/CoverPage"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Entity Incorporation, State or Country Code",
        "label": "Entity Incorporation, State or Country Code",
        "documentation": "Two-character EDGAR code representing the state or country of incorporation."
       }
      }
     },
     "auth_ref": []
    },
    "dei_EntityRegistrantName": {
     "xbrltype": "normalizedStringItemType",
     "nsuri": "http://xbrl.sec.gov/dei/2023",
     "localname": "EntityRegistrantName",
     "presentation": [
      "http://www.ciena.com/role/CoverPage"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Entity Registrant Name",
        "label": "Entity Registrant Name",
        "documentation": "The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC."
       }
      }
     },
     "auth_ref": [
      "r1"
     ]
    },
    "dei_EntityTaxIdentificationNumber": {
     "xbrltype": "employerIdItemType",
     "nsuri": "http://xbrl.sec.gov/dei/2023",
     "localname": "EntityTaxIdentificationNumber",
     "presentation": [
      "http://www.ciena.com/role/CoverPage"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Entity Tax Identification Number",
        "label": "Entity Tax Identification Number",
        "documentation": "The Tax Identification Number (TIN), also known as an Employer Identification Number (EIN), is a unique 9-digit value assigned by the IRS."
       }
      }
     },
     "auth_ref": [
      "r1"
     ]
    },
    "dei_LocalPhoneNumber": {
     "xbrltype": "normalizedStringItemType",
     "nsuri": "http://xbrl.sec.gov/dei/2023",
     "localname": "LocalPhoneNumber",
     "presentation": [
      "http://www.ciena.com/role/CoverPage"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Local Phone Number",
        "label": "Local Phone Number",
        "documentation": "Local phone number for entity."
       }
      }
     },
     "auth_ref": []
    },
    "dei_PreCommencementIssuerTenderOffer": {
     "xbrltype": "booleanItemType",
     "nsuri": "http://xbrl.sec.gov/dei/2023",
     "localname": "PreCommencementIssuerTenderOffer",
     "presentation": [
      "http://www.ciena.com/role/CoverPage"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Pre-commencement Issuer Tender Offer",
        "label": "Pre-commencement Issuer Tender Offer",
        "documentation": "Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act."
       }
      }
     },
     "auth_ref": [
      "r3"
     ]
    },
    "dei_PreCommencementTenderOffer": {
     "xbrltype": "booleanItemType",
     "nsuri": "http://xbrl.sec.gov/dei/2023",
     "localname": "PreCommencementTenderOffer",
     "presentation": [
      "http://www.ciena.com/role/CoverPage"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Pre-commencement Tender Offer",
        "label": "Pre-commencement Tender Offer",
        "documentation": "Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act."
       }
      }
     },
     "auth_ref": [
      "r4"
     ]
    },
    "dei_Security12bTitle": {
     "xbrltype": "securityTitleItemType",
     "nsuri": "http://xbrl.sec.gov/dei/2023",
     "localname": "Security12bTitle",
     "presentation": [
      "http://www.ciena.com/role/CoverPage"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Title of 12(b) Security",
        "label": "Title of 12(b) Security",
        "documentation": "Title of a 12(b) registered security."
       }
      }
     },
     "auth_ref": [
      "r0"
     ]
    },
    "dei_SecurityExchangeName": {
     "xbrltype": "edgarExchangeCodeItemType",
     "nsuri": "http://xbrl.sec.gov/dei/2023",
     "localname": "SecurityExchangeName",
     "presentation": [
      "http://www.ciena.com/role/CoverPage"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Security Exchange Name",
        "label": "Security Exchange Name",
        "documentation": "Name of the Exchange on which a security is registered."
       }
      }
     },
     "auth_ref": [
      "r2"
     ]
    },
    "dei_SolicitingMaterial": {
     "xbrltype": "booleanItemType",
     "nsuri": "http://xbrl.sec.gov/dei/2023",
     "localname": "SolicitingMaterial",
     "presentation": [
      "http://www.ciena.com/role/CoverPage"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Soliciting Material",
        "label": "Soliciting Material",
        "documentation": "Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as soliciting material pursuant to Rule 14a-12 under the Exchange Act."
       }
      }
     },
     "auth_ref": [
      "r5"
     ]
    },
    "dei_TradingSymbol": {
     "xbrltype": "tradingSymbolItemType",
     "nsuri": "http://xbrl.sec.gov/dei/2023",
     "localname": "TradingSymbol",
     "presentation": [
      "http://www.ciena.com/role/CoverPage"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Trading Symbol",
        "label": "Trading Symbol",
        "documentation": "Trading symbol of an instrument as listed on an exchange."
       }
      }
     },
     "auth_ref": []
    },
    "dei_WrittenCommunications": {
     "xbrltype": "booleanItemType",
     "nsuri": "http://xbrl.sec.gov/dei/2023",
     "localname": "WrittenCommunications",
     "presentation": [
      "http://www.ciena.com/role/CoverPage"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Written Communications",
        "label": "Written Communications",
        "documentation": "Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as written communications pursuant to Rule 425 under the Securities Act."
       }
      }
     },
     "auth_ref": [
      "r6"
     ]
    }
   }
  }
 },
 "std_ref": {
  "r0": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Exchange Act",
   "Number": "240",
   "Section": "12",
   "Subsection": "b"
  },
  "r1": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Exchange Act",
   "Number": "240",
   "Section": "12",
   "Subsection": "b-2"
  },
  "r2": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Exchange Act",
   "Number": "240",
   "Section": "12",
   "Subsection": "d1-1"
  },
  "r3": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Exchange Act",
   "Number": "240",
   "Section": "13e",
   "Subsection": "4c"
  },
  "r4": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Exchange Act",
   "Number": "240",
   "Section": "14d",
   "Subsection": "2b"
  },
  "r5": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Exchange Act",
   "Section": "14a",
   "Number": "240",
   "Subsection": "12"
  },
  "r6": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Securities Act",
   "Number": "230",
   "Section": "425"
  }
 }
}
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>ZIP
<SEQUENCE>15
<FILENAME>0000936395-24-000012-xbrl.zip
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
begin 644 0000936395-24-000012-xbrl.zip
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M5!1=]P)G<O')<1](%$\\]KG@N-'(HY.:'_@,)N ^U?!%%HH_7<=A/O\3GM\
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M5LSDXIC@XK3IW"7D7 <Z;(1*#]1G?>RXIZ,-<@SMR;O)/\0G[^:8Y7CA8EE
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M\ET?$O(F]&-K3"C3AQKV)?J?\Z])?FK^A@+UB8E;XHW1(U8L@PMA;OXK4IG
MK/SV^O.1N\6Y.Z"]26^T@))QYL8N<D^,\.%/@9%C(DL]"Y\3GIGJ%!3?^,J=
MG_>W)_>0/Q IJ6E7G\X[A'64U@M]&?LU"X=[MO]^LHM.L%_PU>@W4$L#!!0
M   ( %E.>ECCLCPV(0H  'U5   5    8VEE;BTR,#(T,#,R,5]L86(N>&UL
MS9QO;]NZ%<;?]U-HV9L-N*Q)2J+(HNU%E]L.Q7+;H$EQ+S8,!O\F0FTID)4F
M^?:C9#NU8\DFJ5@=T#2.39_G/"?ZF3R4E->_WL]GT7==+?*R>'."7L*32!>R
M5'EQ]>;DZ^4'0$]^??OBQ>N_ /#G/[Z<1;^5\G:NBSHZK32OM8KN\OHZJJ]U
M]$=9?<N_\^A\QFM35G, WK9O.RUO'JK\ZKJ.,,3)>MCZU>I5AJ56,41 "$-
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M+-IE;/@\NA7UY\RD7<9ZY]+.P:%8?M%7>7/98U&W?]N),BT8@A (I"%(8J4
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MG[SOTZ?V_P-02P$"% ,4    " !93GI8O*+^4188  #DW@  $0
M    @ $     8VEE;BTR,#(T,#,R,2YH=&U02P$"% ,4    " !93GI8+YUP
MTVL"  !T!P  $0              @ %%&   8VEE;BTR,#(T,#,R,2YX<V10
M2P$"% ,4    " !93GI8X[(\-B$*  !]50  %0              @ '?&@
M8VEE;BTR,#(T,#,R,5]L86(N>&UL4$L! A0#%     @ 64YZ6&T&T<:K!@
MY#   !4              ( !,R4  &-I96XM,C R-# S,C%?<')E+GAM;%!+
M 0(4 Q0    ( %E.>EB7>Y@:9@H  '$O   >              "  1$L  !E
M>#$P,3(P,C1A;FYU86QM965T:6YG<F5S=2YH=&U02P4&      4 !0!0 0
&LS8

end
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>17
<FILENAME>cien-20240321_htm.xml
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<XML>
<?xml version="1.0" encoding="utf-8"?>
<xbrl
  xml:lang="en-US"
  xmlns="http://www.xbrl.org/2003/instance"
  xmlns:dei="http://xbrl.sec.gov/dei/2023"
  xmlns:link="http://www.xbrl.org/2003/linkbase"
  xmlns:xlink="http://www.w3.org/1999/xlink">
    <link:schemaRef xlink:href="cien-20240321.xsd" xlink:type="simple"/>
    <context id="c-1">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0000936395</identifier>
        </entity>
        <period>
            <startDate>2024-03-21</startDate>
            <endDate>2024-03-21</endDate>
        </period>
    </context>
    <dei:EntityCentralIndexKey contextRef="c-1" id="f-21">0000936395</dei:EntityCentralIndexKey>
    <dei:AmendmentFlag contextRef="c-1" id="f-22">false</dei:AmendmentFlag>
    <dei:DocumentType contextRef="c-1" id="f-1">8-K</dei:DocumentType>
    <dei:DocumentPeriodEndDate contextRef="c-1" id="f-2">2024-03-21</dei:DocumentPeriodEndDate>
    <dei:EntityRegistrantName contextRef="c-1" id="f-3">Ciena Corp</dei:EntityRegistrantName>
    <dei:EntityFileNumber contextRef="c-1" id="f-4">001-36250</dei:EntityFileNumber>
    <dei:EntityIncorporationStateCountryCode contextRef="c-1" id="f-5">DE</dei:EntityIncorporationStateCountryCode>
    <dei:EntityAddressAddressLine1 contextRef="c-1" id="f-6">7035 Ridge Road</dei:EntityAddressAddressLine1>
    <dei:EntityAddressCityOrTown contextRef="c-1" id="f-7">Hanover</dei:EntityAddressCityOrTown>
    <dei:EntityAddressStateOrProvince contextRef="c-1" id="f-8">MD</dei:EntityAddressStateOrProvince>
    <dei:EntityTaxIdentificationNumber contextRef="c-1" id="f-9">23-2725311</dei:EntityTaxIdentificationNumber>
    <dei:EntityAddressPostalZipCode contextRef="c-1" id="f-10">21076</dei:EntityAddressPostalZipCode>
    <dei:CityAreaCode contextRef="c-1" id="f-11">410</dei:CityAreaCode>
    <dei:LocalPhoneNumber contextRef="c-1" id="f-12">694-5700</dei:LocalPhoneNumber>
    <dei:WrittenCommunications contextRef="c-1" id="f-13">false</dei:WrittenCommunications>
    <dei:SolicitingMaterial contextRef="c-1" id="f-14">false</dei:SolicitingMaterial>
    <dei:PreCommencementTenderOffer contextRef="c-1" id="f-15">false</dei:PreCommencementTenderOffer>
    <dei:PreCommencementIssuerTenderOffer contextRef="c-1" id="f-16">false</dei:PreCommencementIssuerTenderOffer>
    <dei:Security12bTitle contextRef="c-1" id="f-17">Common stock, $0.01 par value</dei:Security12bTitle>
    <dei:TradingSymbol contextRef="c-1" id="f-18">CIEN</dei:TradingSymbol>
    <dei:SecurityExchangeName contextRef="c-1" id="f-19">NYSE</dei:SecurityExchangeName>
    <dei:EntityEmergingGrowthCompany contextRef="c-1" id="f-20">false</dei:EntityEmergingGrowthCompany>
</xbrl>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
