05140456 is referenced by 77 patents and cites 10 patents.

A rare earth doped optical fiber amplifier is pumped at a first wavelength selected to provide a low noise figure, and at a second wavelength selected to provide a high power efficiency. An erbium-doped fiber amplifier is illustrated, in which the first wavelength is about 980 nm and the second wavelength is about 1480 nm. The amplifier is forward pumped with the 980 nm wavelength adjacent the amplifier input to provide a low noise figure. Backward pumping at the 1480 nm wavelength is provided adjacent the amplifier output to achieve a high power efficiency.

Title
Low noise high power optical fiber amplifier
Application Number
7/681986
Publication Number
5140456
Application Date
April 8, 1991
Publication Date
August 18, 1992
Inventor
David R Huber
Warrington
PA, US
Agent
Barry R Lipsitz
Assignee
General Instrument Corporation
PA, US
IPC
G02B 6/26
H01S 3/094
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