MILPITAS, Calif., July 26, 2007 -- JDSU (Nasdaq: JDSU; TSX: JDU) today announced that it will report financial results for its fiscal 2007 fourth quarter and year ended June 30, 2007, on Wednesday, August 22, 2007 after the close of the market.

The Company will host a management presentation at 2:00 p.m. Pacific Time on Wednesday, August 22, 2007 to discuss the results. To access the live webcast, please visit JDSU's website at www.jdsu.com/investors at least 15 minutes before the scheduled start time to download any necessary audio or plug-in software. A replay of the webcast will be available shortly following the call until at least Wednesday, September 19, 2007.

About JDSU

JDSU (NASDAQ: JDSU; and TSX: JDU) enables broadband and optical innovation in the communications, commercial and consumer markets.  JDSU is a leading provider of communications test and measurement solutions and optical products for telecommunications service providers, cable operators, and network equipment manufacturers.  JDSU is a leading provider of innovative optical solutions for medical/environmental instrumentation, semiconductor processing, display, brand authentication, aerospace and defense, and decorative applications.  More information is available at www.jdsu.com.

Contact Information

Investors:       Jordan Goldstein, 408-546-4445 or investor.relations@jdsu.com
Press:                Kathleen Greene, 408-546-5852 or Kathleen.greene@jdsu.com