5000 Series Undersea Pump Module Offers Twice the Power of Previous Generation Pumps SAN JOSE, Calif., and GLASGOW, Scotland, Sept. 26 /PRNewswire-FirstCall/ -- JDSU (Nasdaq: JDSU; TSX: JDU) today announced the qualification of its 5000 Series Undersea Pump Module, offering optical power up to 400 mW and performance that exceeds Telcordia standards to meet the requirements for undersea deployment. A unique combination of the latest generation of proven chip technology and a proven packaging technology, the 5000 Series Undersea Pump was developed in response to the accelerating adoption of broadband services and the correlating high bit-rate environments at the long-haul and ultra long-haul levels. The product will be on display at ECOC 2005 in Glasgow, September 26-29, booth 85. (Logo: http://www.newscom.com/cgi-bin/prnh/20050913/SFTU125LOGO ) Core networks, including undersea cables, are supporting strong traffic increases resulting from widespread deployment of broadband access technologies. Network operators are challenged by the need to reduce operating expenses while also adding new revenue-generating services and increased performance. Subjected to multiple aging life tests during the qualification process, as well as stringent in-process screening (also known as "pedigree review") to certify for undersea deployment, the 5000 Series is able to help manufacturers of undersea cabling equipment meet these emerging demands. "Demand for consumer and business broadband services is prompting operators to expand the capacity and performance of their networks through increased investment in new systems," said Julian Rawle, Senior Market Analyst for Pioneer Consulting (http://www.pioneerconsulting.com/), a market research firm specializing in submarine fiber optics. "A high power, highly reliable 980 nm pump is therefore a critical component for suppliers of undersea communications systems. JDSU has a product with a proven track record that can help system suppliers successfully respond to the demands for reliability associated with an undersea environment." "Our Congratulations to JDSU for their innovative approach," said Seymour Shapiro, VP R&D of Tyco Telecommunications. "JDSU has taken proven, deployed packaging technology and successfully integrated it with its laser diode chip, creating a high power undersea pump capability that offers a cost-effective solution for network operators." The JDSU 5000 Series Undersea Pump Module is manufactured by highly skilled, trained and certified personnel in a U.S.-based pump module manufacturing facility that has produced the majority of the world's 980 nm pump modules. The facility has been extensively audited and the 5000 Series also undergoes continuing surveillance to ensure manufacturing stability. About JDSU's 5000 Series Undersea Pump Module The JDSU Series 5000 Undersea Pump Module is a combination of previously proven undersea technologies, the JDSU 6500 series 980 nm laser diode and the JDSU undersea pump module package. Both technologies have more than one billion device hours of undersea field operation without a reported failure. JDSU has the world's largest database of undersea 980 nm lifetest data (6500 series 980 nm laser diode) and the undersea pump module package has been deployed successfully in undersea systems since 1998. In addition, as the integrated manufacturer of the laser diode chip and module package, JDSU ensures optimal specification matching, integrated supply chain planning for efficiently-timed management, and an industry-leading cost structure. About JDSU JDSU is committed to enabling broadband & 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. Furthermore, JDSU is a leading provider of innovative optical solutions for medical/environmental instrumentation, semiconductor processing, display, brand authentication, aerospace and defense applications, and decorative. 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: JDSU Corporation. Investors: Jacquie Ross, Investor Relations, +1-408-546-4445, or http://www.newscom.com/cgi-bin/prnh/20050913/SFTU125LOGO http://photoarchive.ap.org/ DATASOURCE: JDSU CONTACT: Media: Nick Rowan, Public Relations, +1-240-404-1924 or , or Investors: Jacquie Ross, Investor Relations, +1-408-546-4445, or , both of JDSU Web site: http://www.jdsu.com/

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