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    CONFORMED SUBMISSION TYPE:	8-K
    PUBLIC DOCUMENT COUNT:		38
    CONFORMED PERIOD OF REPORT:	20211209
    ITEM INFORMATION:		Results of Operations and Financial Condition
    ITEM INFORMATION:		Other Events
    ITEM INFORMATION:		Financial Statements and Exhibits
    FILED AS OF DATE:		20211209
    DATE AS OF CHANGE:		20211209

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    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			CIENA CORP
    		CENTRAL INDEX KEY:			0000936395
    		STANDARD INDUSTRIAL CLASSIFICATION:	TELEPHONE & TELEGRAPH APPARATUS [3661]
    		IRS NUMBER:				232725311
    		STATE OF INCORPORATION:			DE
    		FISCAL YEAR END:			1030

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    		SEC ACT:		1934 Act
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    		CITY:			HANOVER
    		STATE:			MD
    		ZIP:			21076
    		BUSINESS PHONE:		4108658500

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    		STATE:			MD
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