<SEC-DOCUMENT>0001193125-23-060191-index.html : 20230303
<SEC-HEADER>0001193125-23-060191.hdr.sgml : 20230303
<ACCEPTANCE-DATETIME>20230303171609
ACCESSION NUMBER:		0001193125-23-060191
CONFORMED SUBMISSION TYPE:	DEFA14A
PUBLIC DOCUMENT COUNT:		3
FILED AS OF DATE:		20230303
DATE AS OF CHANGE:		20230303

FILER:

	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:			1029

	FILING VALUES:
		FORM TYPE:		DEFA14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-36250
		FILM NUMBER:		23705773

	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>DEFA14A
<SEQUENCE>1
<FILENAME>d460635ddefa14a.htm
<DESCRIPTION>DEFA14A
<TEXT>
Document 1 - file: d460635ddefa14a.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>g460635g49m53.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 2 - file: g460635g49m53.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>g460635g93l06.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 3 - file: g460635g93l06.jpg

</DOCUMENT>
</SEC-DOCUMENT>