<SEC-DOCUMENT>0000936395-20-000023-index.html : 20200529
<SEC-HEADER>0000936395-20-000023.hdr.sgml : 20200529
<ACCEPTANCE-DATETIME>20200529172507
ACCESSION NUMBER:		0000936395-20-000023
CONFORMED SUBMISSION TYPE:	SD
PUBLIC DOCUMENT COUNT:		2
<RULE>
<RULE-NAME>13p-1
<ITEM>
<ITEM-NUMBER>1.01
<ITEM-PERIOD>20191231
</ITEM>
<ITEM>
<ITEM-NUMBER>1.02
<ITEM-PERIOD>20191231
</ITEM>
</RULE>
FILED AS OF DATE:		20200529
DATE AS OF CHANGE:		20200529

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:		SD
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-36250
		FILM NUMBER:		20929510

	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>SD
<SEQUENCE>1
<FILENAME>formsd-2020.htm
<DESCRIPTION>SD
<TEXT>
Document 1 - file: formsd-2020.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-1.01
<SEQUENCE>2
<FILENAME>ex101conflictminrprt2020.htm
<DESCRIPTION>EXHIBIT 1.01
<TEXT>
Document 2 - file: ex101conflictminrprt2020.htm

</DOCUMENT>
</SEC-DOCUMENT>