DTS-330 and DTS-200 Digital Test and Measurement Solutions Support Video Compression System R&D and Technical Support

San Jose, CA, September 9, 2005 - JDS Uniphase Corporation (NASDAQ: JDSU; and TSX: JDU), the worldwide leader in broadband test and measurement solutions, today announced that Harmonic is using its DTS digital video broadcast analyzers to support their efficient and accurate deployment of several digital video services. With JDS Uniphase’s DTS-330 and DTS-200 video analyzers, Harmonic, a leading provider of broadband optical networking and digital video systems, extends its already long-standing use of Acterna test solutions which have been recently acquired by JDS Uniphase. 

JDS Uniphase’s digital video broadcast and cable networks test solutions will be on display at IBC, September 9-13, Amsterdam, Hall 8, Booth 8.314.

Renown for providing a high level of reliability and accelerating time-to-market for its customers, Harmonic needs accurate test and network measurement solutions to facilitate the rapid deployment of high-quality services for its customers. For the last eight years, Harmonic has relied on the DTS MPEG analyzers to monitor signal quality and implement complex broadband TV services. Harmonic is broadening its use of the DTS-200 and DTS-330 to support its R&D initiatives.

“At Harmonic, it is critical that analysis of our digital signals are accurate before we go live with a broadband video network,” said Kevin Davey, director of service and support for the Convergent Systems Division of Harmonic Inc. “In the event a signal problem occurs, we must be able to quickly identify the source and fix it. JDS Uniphase’s DTS digital test product line helps streamline the troubleshooting process and perform high quality digital broadcast stream analysis and field troubleshooting.” 

“Harmonic is the strategic broadband infrastructure solutions partner for many of the world’s top broadband service providers,” said Sudeep Bose, product marketing manager for JDS Uniphase’s DTS Product Line. “We are pleased that our DTS line of MPEG test and measurement solutions continue to meet Harmonic’s requirements, providing them the accurate measurements they need to build today’s broadcast TV networks.”

In the race to provide a triple play of voice, video and data services over IP networks, JDS Uniphase’s test and network measurement solutions are used by major operators around the world. Troubleshooting is made easier with the knowledge that the DTS product delivers digital video services measurements that have established it as one of the most accurate in the industry.
 
Harmonic delivers scalable, open-standards solutions for broadband headend operators in the cable, satellite, terrestrial, telecom, and wireless industries. The company’s products are integral to the development of new revenue sources and competitive advantages from powerful interactive video, voice, and data services such as high definition digital television, video-on-demand, telephony, and Internet access. 

About the DTS-200 and DTS-330
JDS Uniphase’s DTS-200 allows digital network operators and associated equipment vendors to gain remote visibility into their MPEG streams and perform various test applications to identify problems with equipment and content. A powerful remote test solution, the DTS-200 provides a simple and rapid means to access and analyze digital video (DV) data. The DTS-330 is a “one-box” solution that offers several different combinations of MPEG (digital video broadcast, or DVB, and advanced television systems committee, or ATSC) transport stream generation, capture, creation, and analysis. Its applications range from R&D validation to system deployment and troubleshooting.

About JDS Uniphase
JDS Uniphase is committed to enabling broadband & optical innovation in
the communications, commercial and consumer markets. JDS Uniphase is the leading provider of communications test and measurement solutions and optical products for telecommunications service providers, cable operators, and network equipment manufacturers. Furthermore, JDS Uniphase 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 http://www.jdsu.com/.

The statements contained in this press release that are not purely historical are forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Act of 1934. Such forward-looking statements include, but are not limited to, any statement or implication that the products described in this press release (i) will be successfully introduced or marketed, (ii) will be qualified and purchased by our customers, or (iii) will perform to any particular specifications or performance or reliability standards. Such forward-looking statements involve risks and uncertainties that, if realized, could materially impair the Company's results of operations, business, and financial condition. These risks and uncertainties include, but are not limited to, (a) the failure of the products (i) to perform as expected without material defects, (ii) to be manufactured at acceptable volumes, yields, and cost, (iii) to be qualified and accepted by our customers, and (iv) to successfully compete with products offered by our competitors, and (b) factors discussed from time to time in reports filed by the Company with the Securities and Exchange Commission. The forward-looking statements contained in this news release are made as of the date hereof, and the Company does not assume any obligation to update or qualify any of the statements made herein. Source: JDS Uniphase Corporation.

Contacts
Media: Bernie Tylor, Public Relations, 240-404-1913 or bernie.tylor@jdsu.com
Investors: Jacquie Ross, Investor Relations, 408-546-4445, or investor.relations@jdsu.com