FREMONT, CA – September 8, 2004 – Santur Corporation, a leading manufacturer of reliable, cost-effective source laser components for the telecommunications industry, today announced that CoreOptics, a leader in high performance dispersion tolerant optical subsystems, has selected Santur to be its main supplier of tunable lasers for the company’s first release of dispersion tolerant transponders.

"Santur’s highly reliable, DFB array-based tunable laser technology, as well as its proven management team, gives CoreOptics the confidence that its customer requirements for widely tunable transponders for the optical industry will be fully satisfied,” said Hamid Arabzadeh, CoreOptics President and CEO. “We are delighted to work with Santur to support CoreOptics’ continued success with the top tier-1 system providers, to enable the building of open and tolerant optical networks by delivering a new class of dispersion tolerant transponders with advanced digital signal processing remedy for the physical layer impairments.”

“We are honored that CoreOptics has chosen Santur to be their main supplier of Full Band Widely Tunable Lasers. This is a tremendous vote of confidence in Santur and our ability to deliver highly reliable lasers to the global telecom market,” said Dr. Richard Craig, CEO of Santur Corporation. “We are excited to partner with CoreOptics as we continue to expand to meet their customer’s ramping production requirements.”

About Santur Corporation
Headquartered in Fremont, California, Santur Corporation is a leading vertically integrated manufacturer of high-performance lasers for the global telecom market. The company’s patented DFB-array technology enables the fabrication of broadly tunable sources at the same performance and costs as fixed wavelength sources. Santur’s products have set a new standard in the industry with their unique combination of high-power achieved without the use of a semiconductor optical amplifier (SOA), wide tunability with no possibility of mode hops, stability in harsh environments, Telcordia GR-468 reliability and low cost. For more information, visit www.santurcorp.com, call 1-(866)-TUNABLE, or e-mail marketing@santurcorp.com.

About CoreOptics
CoreOptics develops and manufactures modules and subsystems for ultra high-speed optical networking solutions for the telecommunications and the information technology industry. CoreOptics current portfolio includes advanced transponders for Metropolitan and Long Haul optical systems at 40Gb/s and 10 Gbit/s using DWDM, SONET/SDH, ATM and IP protocols. CoreOptics Inc. was founded in January 2001 and has operations in Nuremberg Germany and Manchester, New Hampshire USA. Over 50 highly skilled engineers in RF and Digital ASIC with extensive experience in optical systems, applications and networks represent the foundation of CoreOptics capability in optical and electronic signal processing and transport.

Contact:
Santur Corporation
Gurinder Parhar
Phone: (510) 933-4100, ext. 226
Fax: (510) 656-7563
E-mail: gparhar@santurcorp.com
www.santurcorp.com

CoreOptics
Saeid Aramideh
Vice President of Marketing
50 Bridge Street, #308
Manchester, NH 03101
Phone: 603-669-3355
E-mail: saeid@coreoptics.com
www.coreoptics.com