06201635 is referenced by 4 patents and cites 4 patents.

The invention relates to an optical amplifier; more particularly, the invention provides an optical amplifier that contains a front-end optical amplifier and a back-end optical amplifier, and that is equipped with an automatic compensation function for automatically detecting and compensating for signal loss caused by a dispersion compensator inserted between the front-end and back-end optical amplifiers. The optical amplifier, which contains a front-end optical amplifier

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and a back-end optical amplifier

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comprises: a loss detection means

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for detecting optical signal loss occurring between the front-end optical amplifier and the back-end optical amplifier; and a gain control means

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for compensating, based on the loss detected by the loss detection means, for a variation in optical output power of the entire optical amplifier including the front-end optical amplifier and back-end optical amplifier.

Title
Optical amplifier
Application Number
9/248105
Publication Number
6201635 (B1)
Application Date
February 11, 1999
Publication Date
March 13, 2001
Inventor
Yuji Tamura
Sapporo
US
Mikinori Yamanaka
Sapporo
US
Agent
Staas & Halsey
US
Assignee
Fujitsu
US
IPC
H01S 3/00
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