Method and apparatus for preventing occurrence of surge light in

Details Method and apparatus for preventing occurrence of surge light in Method and apparatus for preventing occurrence of surge light in

1994-08-31

1996-10-29

Moskowitz, Nelson

Optical: systems and elements

Optical amplifier

Optical fiber

359337, H04B 1000, H01S 300, G02F 139

Patent

active

055702279

ABSTRACT:
Disclosed is a method and apparatus for preventing the occurrence of surge light that may be caused by an off-to-on transition of input signal light in an optical amplifier using an erbium-doped optical fiber. An input electrical signal, optical modulator output, leakage light, or light output is monitored to detect the off-to-on transition of the signal light, and the energy level of the input signal light or pumping light is gradually increased from a low level to an operating level.

REFERENCES:
patent: 4924473 (1990-05-01), Burgyan et al.
patent: 5088095 (1992-02-01), Zirngibl
patent: 5163063 (1992-11-01), Yoshikawa et al.
patent: 5226051 (1993-07-01), Chan
patent: 5268786 (1993-12-01), Matsushita et al.
patent: 5315674 (1994-05-01), Asako
patent: 5343320 (1994-08-01), Anderson

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