<SEC-DOCUMENT>0001193125-15-169310-index.html : 20150504
<SEC-HEADER>0001193125-15-169310.hdr.sgml : 20150504
<ACCEPTANCE-DATETIME>20150504172334
ACCESSION NUMBER:		0001193125-15-169310
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		6
CONFORMED PERIOD OF REPORT:	20150503
ITEM INFORMATION:		Entry into a Material Definitive Agreement
ITEM INFORMATION:		Results of Operations and Financial Condition
ITEM INFORMATION:		Other Events
ITEM INFORMATION:		Financial Statements and Exhibits
FILED AS OF DATE:		20150504
DATE AS OF CHANGE:		20150504

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:			1031

	FILING VALUES:
		FORM TYPE:		8-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-36250
		FILM NUMBER:		15829564

	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>d918564d8k.htm
<DESCRIPTION>FORM 8-K
<TEXT>
Document 1 - file: d918564d8k.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-2.1
<SEQUENCE>2
<FILENAME>d918564dex21.htm
<DESCRIPTION>EX-2.1
<TEXT>
Document 2 - file: d918564dex21.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>3
<FILENAME>d918564dex991.htm
<DESCRIPTION>EX-99.1
<TEXT>
Document 3 - file: d918564dex991.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.2
<SEQUENCE>4
<FILENAME>d918564dex992.htm
<DESCRIPTION>EX-99.2
<TEXT>
Document 4 - file: d918564dex992.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.3
<SEQUENCE>5
<FILENAME>d918564dex993.htm
<DESCRIPTION>EX-99.3
<TEXT>
Document 5 - file: d918564dex993.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>g918564ex99_3pg01.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 6 - file: g918564ex99_3pg01.jpg

</DOCUMENT>
</SEC-DOCUMENT>