JOSE, Calif., August 31, 2005 – JDS Uniphase Corporation (Nasdaq: JDSU and TSX: JDU), today announced that it will report financial results for its fourth quarter and fiscal 2005 on Thursday, September 1, 2005 after the market closes.

The company will host a conference call at 1:30 p.m. Pacific Time on Thursday, September 1, 2005 to discuss the results.  To access the live webcast, please visit JDS Uniphase’s website at www.jdsu.com/investors at least 30 minutes before the scheduled start time to download any necessary audio or plug-in software.  A replay of the webcast will be available from 3:00 p.m. Pacific Time on Thursday, September 1, 2005 until Thursday, September 22, 2005.

About JDS Uniphase
JDS Uniphase is the worldwide leading provider of broadband test & measurement solutions and optical products for communications, commercial and consumer markets. The Company offers test and measurement systems and services for telecommunications service providers, cable operators and network equipment manufacturers. In addition, the Company offers components, modules and subsystems for optical communication, display, security, medical/environmental instrumentation, decorative, aerospace and defense applications. More information is available at http://www.jdsu.com/.

Contacts
Investors: Jacquie Ross, 408-546-4445 or investor.relations@jdsu.com
Media: Jayme Curtis, 408-546-7028, jayme.curtis@jdsu.com