<SUBMISSION>
<ACCESSION-NUMBER>0000950133-08-000964
<TYPE>8-K
<PUBLIC-DOCUMENT-COUNT>1
<PERIOD>20080303
<ITEMS>2.01
<ITEMS>9.01
<FILING-DATE>20080305
<DATE-OF-FILING-DATE-CHANGE>20080305
<FILER>
<COMPANY-DATA>
<CONFORMED-NAME>CIENA CORP
<CIK>0000936395
<ASSIGNED-SIC>3661
<IRS-NUMBER>232725311
<STATE-OF-INCORPORATION>DE
<FISCAL-YEAR-END>1031
</COMPANY-DATA>
<FILING-VALUES>
<FORM-TYPE>8-K
<ACT>34
<FILE-NUMBER>000-21969
<FILM-NUMBER>08668688
</FILING-VALUES>
<BUSINESS-ADDRESS>
<STREET1>1201 WINTERSON ROAD
<CITY>LINTHICUM
<STATE>MD
<ZIP>21090
<PHONE>4108658500
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>1201 WINTERSON ROAD
<CITY>LINTHICUM
<STATE>MD
<ZIP>21090
</MAIL-ADDRESS>
</FILER>
<DOCUMENT>
<TYPE>8-K
<SEQUENCE>1
<FILENAME>w50967e8vk.htm
<DESCRIPTION>8-K
<TEXT>
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<DIV align="center" style="font-size: 14pt; margin-top: 12pt"><B>UNITED STATES<BR>
SECURITIES AND EXCHANGE COMMISSION</B>
</DIV>

<DIV align="center" style="font-size: 12pt"><B>WASHINGTON, DC 20549</B>
</DIV>

<DIV align="center" style="font-size: 18pt; margin-top: 12pt"><B>FORM 8-K</B>
</DIV>


<DIV align="center" style="font-size: 12pt; margin-top: 12pt"><B>CURRENT REPORT<BR>
PURSUANT TO SECTION 13 OR 15(D) OF THE<BR>
SECURITIES EXCHANGE ACT OF 1934</B>
</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 12pt"><B>Date of report (Date of earliest event reported) </B><U><B>March&nbsp;3, 2008</B></U></DIV>

<DIV align="center" style="font-size: 24pt; margin-top: 12pt"><B>Ciena Corporation</B>
</DIV>

<DIV align="center" style="font-size: 10pt">(Exact Name of Registrant as Specified in Its Charter)<br></DIV>


<DIV align="center" style="font-size: 10pt; margin-top: 12pt"><B>Delaware</B></DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 12pt">(State or Other Jurisdiction of Incorporation)</DIV>

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
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<TR valign="bottom">
    <TD width="47%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="47%">&nbsp;</TD>
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<TR valign="bottom">
    <TD align="center" valign="top"><B>0-21969</B>
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top"><B>23-2725311</B></TD>
</TR>
<TR style="font-size: 1px">
    <TD colspan="3" valign="top" align="left" style="border-top: 1px solid #000000">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top">(Commission File Number)
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">(IRS Employer Identification No.)</TD>
</TR>
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    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
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<TR valign="bottom">
    <TD align="center" valign="top"><B>1201 Winterson Road, Linthicum, MD</B>
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top"><B>21090</B></TD>
</TR>
<TR style="font-size: 1px">
    <TD colspan="3" valign="top" align="left" style="border-top: 1px solid #000000">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top">(Address of Principal Executive Offices)
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">(Zip Code)</TD>
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</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 12pt"><B>(410)&nbsp;865-8500</B></DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 12pt">(Registrant&#146;s Telephone Number, Including Area Code)</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 12pt">(Former Name or Former Address, if Changed Since Last Report)</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;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 (<I>see </I>General
Instruction A.2. below):
</DIV>

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    <TD width="3%" nowrap align="left"><FONT face="Wingdings">&#111;</FONT></TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Written communications pursuant to Rule&nbsp;425 under the Securities Act (17 CFR 230.425)</TD>
</TR>

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    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left"><FONT face="Wingdings">&#111;</FONT></TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Soliciting material pursuant to Rule&nbsp;14a-12 under the Exchange Act (17 CFR 240.14a-12)</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left"><FONT face="Wingdings">&#111;</FONT></TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Pre-commencement communications pursuant to Rule&nbsp;14d-2(b) under the Exchange Act (17
CFR 240.14d-2(b))</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left"><FONT face="Wingdings">&#111;</FONT></TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Pre-commencement communications pursuant to Rule&nbsp;13e-4(c) under the Exchange Act (17
CFR 240.13e-4(c))</TD>
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<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;2.01. Completion of Acquisition or Disposition of Assets</B>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">On March&nbsp;3, 2008, Ciena Corporation (&#147;<B>Ciena</B>&#148;) completed the acquisition of World Wide Packets,
Inc., a Delaware corporation (&#147;<B>World Wide Packets</B>&#148;), pursuant to the terms of an Agreement and Plan
of Merger dated January&nbsp;22, 2008 (the &#147;<B>Merger Agreement</B>&#148;) by and among Ciena, World Wide Packets,
Wolverine Acquisition Subsidiary, Inc., a Delaware corporation and wholly owned subsidiary of Ciena
(&#147;<B>Merger Sub</B>&#148;), and Daniel Reiner, as Stockholders&#146; Representative. Pursuant to the Merger
Agreement, Merger Sub was merged with and into World Wide Packets, with World Wide Packets
continuing as the surviving corporation and a wholly owned subsidiary of Ciena (the &#147;<B>Merger</B>&#148;). The
stockholders of World Wide Packets consisted of employees, investors and other persons who, to
Ciena&#146;s knowledge, had no material relationship with Ciena or its officers, directors or affiliates
other than in respect of the transaction. Reference is made to the Merger Agreement, a copy of
which is set forth as Exhibit&nbsp;2.1 incorporated by reference as an exhibit to this Report.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">Upon the closing of the Merger, all of the outstanding shares of World Wide Packets common stock
and preferred stock were exchanged for approximately 2.5&nbsp;million shares of Ciena common stock and
approximately $196.7&nbsp;million in cash. Of this amount, $20.0&nbsp;million in cash and 340,000 shares of
Ciena common stock were placed into escrow for a period of one year as security for the
indemnification obligations of World Wide Packets&#146; stockholders under the Merger Agreement. Upon
the closing, Ciena also assumed all then outstanding World Wide Packets options and substituted for
them options to acquire approximately 0.9&nbsp;million shares of Ciena common stock. Ciena assumed all
outstanding liabilities of World Wide Packets as a result of the Merger, including approximately
$11.3&nbsp;million in outstanding debt. Ciena also paid transaction costs of World Wide Packets of
approximately $10.3&nbsp;million.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">World Wide Packets is a supplier of communications network equipment that enables the
cost-effective delivery of a wide variety of Carrier Ethernet-based services. Prior to the Merger,
World Wide Packets was a privately held company.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;9.01 Financial Statements and Exhibits</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">Ciena will file the financial statements required by this Item&nbsp;9.01 not later than seventy-one
calendar days after the date on which this Current Report on Form 8-K must be filed.
</DIV>
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<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="left" style="border-bottom: 1px solid #000000"><B>Exhibit No.</B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" style="border-bottom: 1px solid #000000"><B>Description</B></TD>
</TR>

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    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">2.1(1)
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Agreement and Plan of Merger, dated January&nbsp;22, 2008, among Ciena Corporation, Wolverine
Acquisition Subsidiary, Inc., World Wide Packets, Inc. and Daniel Reiner, as Stockholders
Representative.</TD>
</TR>
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</DIV>

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<DIV style="font-size: 3pt; margin-top: 16pt; width: 18%; border-top: 1px solid #000000">&nbsp;</DIV>
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<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="1%" nowrap align="left">(1)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Incorporated by reference to Exhibit&nbsp;2.1 of Ciena&#146;s Current Report on Form 8-K filed on
January&nbsp;24, 2008.</TD>
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<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>SIGNATURES</B>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">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.
</DIV>


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    <TD valign="top" align="left">&nbsp;</TD>
    <TD colspan="3" align="left"><B>Ciena Corporation</B><BR>
&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">Date: March 5, 2008&nbsp;</TD>
    <TD valign="top">By:&nbsp;&nbsp;</TD>
    <TD colspan="2" style="border-bottom: 1px solid #000000" align="left">/s/ Russell B. Stevenson, Jr.
&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD colspan="2" align="left">Russell B. Stevenson, Jr.&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD colspan="2" align="left">Senior Vice President, General Counsel
and Secretary&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR>
    <TD colspan="5">&nbsp;</TD>
</TR>
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