07202997 is referenced by 3 patents and cites 34 patents.

An optical amplifier includes first and second optical amplifier units, a variable optical attenuator optically coupled between the first and second optical amplifier units, a first control unit to control gains of the first and second optical amplifier units based on an input of the first optical amplifier unit and an output of the second optical amplifier unit, and a second control unit to control an attenuation quantity of the variable optical attenuator based on the input and an output of the first optical amplifier unit and an input and the output of the second optical amplifier unit.

Title
Optical amplifier and optical amplifier control method
Application Number
10/716361
Publication Number
7202997 (B2)
Application Date
November 17, 2003
Publication Date
April 10, 2007
Inventor
Hiroyuki Itou
Yokohama
JP
Kosuke Komaki
Kawasaki
JP
Hiroshi Iizuka
Kawasaki
JP
Agent
Katten Muchin Rosenman
Assignee
Fujitsu
JP
IPC
H04B 10/17
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