Onetta Releases Technical Paper On Dynamic Gain Equalization and Its Role in Creating Economic Value for Network Service Providers.

Business Editors/High-Tech Writers

SUNNYVALE, Calif.--(BUSINESS WIRE)--July 16, 2001

Optical Networking and DWDM Systems Expert

Dr. Atul Srivastava Serves as Lead Author

Onetta, Inc. (www.onetta.com), the leading developer and manufacturer of Intelligent Optical Engines (IOEs), today announced the release of a technology paper addressing the benefits of dynamic gain equalization (DGE) and its role in providing economic value for network service providers who are deploying dense wavelength division (DWDM) networks.

Dr. Atul Srivastava, a renowned industry expert in DWDM systems, served as the lead author for this paper which outlines how dynamic gain equalization can lower the cost of next-generation ultra-long haul networks and improve service velocity. Using a series of established linear and non-linear transmission model analyses, the paper specifically addresses the role of DGE solutions to improve system optical signal-to-noise ratio (OSNR) performance and extend reach for ultra long distances.

Srivastava and his team sought to objectively explore a series of technology options for deploying DGE within a DWDM system environment. The paper reviews the conventional integration of erbium-doped fiber amplifiers (EDFAs) and gain equalization filters (GEFs), as well as, the associated challenges of dynamically re-configurable networks for EDFA design. Another key focus was to examine the role of dynamic gain technology to overcome the shortcomings of standard GEFs and therefore offer the following benefits to service providers:

-- Increase average span length between optical amplifiers and/or the distance
between electrical regenerators in ultra long-haul networks.

-- Support dynamic network configuration by making OSNR independent of channel
loading

-- Enable the use of standard GEFs and therefore reduce development costs and
shorten EDFA time-to-market.

-- Adjust gain tilt in EDFAs to address changes in input power, making it
possible to eliminate the variable optical attenuators (VOAs) that are
currently required.

-- Remove the need for custom cleanup filters that are commonly used in
terrestrial ultra long-haul systems to reduce accumulated ripple.

A veteran of the optical industry, Srivastava has over 20-years of research and development experience and is credited with many industry firsts in optics, semiconductor opto-electronics and high-capacity fiber communication systems. He has written numerous papers and received several awards for his work in WDM optical communications, including Lucent's prestigious President's Gold Award and the Trophee du Telephone in Paris. Srivastava holds four degrees from Banaras University, including a bachelor's of science in physics, chemistry, and mathematics, a master's of science in physics and a Ph.D. in physics from Bombay University. The paper is titled "Creating Economic Value in DWDM Systems with Dynamic Gain Equalization" and is available in PDF format from www.onetta.com (under Resources). Hard copies may also be requested through [e-mail].

About Onetta

Onetta, Inc. develops and manufactures Intelligent Optical Engines (IOEs) for optical network equipment manufacturers (ONEMs) and network service providers (NSPs) deploying regional and global optical networks. Onetta produces timely, cost-effective and customized products to help ONEMs and NSPs build high-performance optical networks with flexible bandwidth provisioning. The company has expertise in all levels of optical networking, from system engineering to optical and electronic control systems. Onetta was founded in February 2000 and has received significant funding from Matrix Partners, Sequoia Capital, HarbourVest Partners, Sumitomo Corporation, J. & W. Seligman & Co., J.P. Morgan H&Q and BlueStream Ventures. For more information on the company please visit http://www.onetta.com.