Document and Entity Information (USD $) In Billions, except Share data	12 Months Ended
	Jul. 02, 2011	Jul. 29, 2011	Jan. 01, 2011
Document and Entity Information
Entity Registrant Name	JDS UNIPHASE CORP /CA/
Entity Central Index Key	0000912093
Document Type	10-K
Document Period End Date	Jul. 02, 2011
Amendment Flag	false
Current Fiscal Year End Date	--07-02
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Public Float			$ 3.2
Entity Common Stock, Shares Outstanding		228,070,114
Document Fiscal Year Focus	2011
Document Fiscal Period Focus	FY