Method and system for automatically setting gain for an...

Optical communications – Diagnostic testing – Determination of communication parameter

Reexamination Certificate

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C359S341410

Reexamination Certificate

active

07151895

ABSTRACT:
A method for automatically setting a gain for an amplifier in an optical network includes transmitting, from a source proximate an upstream amplifier coupled to an optical span, a stable signal over the optical span. The method also includes using the stable signal at a downstream amplifier coupled to the optical span to automatically set a gain of the downstream amplifier.

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Agrawal, Govind P. Fiber-Optic Communication Systems. 3rdEdition. Wiley-Interscience. 2002. pp. 518-519.
PHOTOTURIS/Wavelength power.SONET simplicity,http://www.photuris.com/ 2003
ews/mediakit.shtml, printed Aug. 21, 2003, 2 pages.
U.S. Appl. No. 10/448,579, entitled “Method and System for Determining Gain for an Optical Signal”, inventors Cechan Tian, et al., filed May 29, 2003, 29 pages specification, claims and abstract and 3 sheets of drawings.
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