Optical fiber amplifier unit and method for supplying excited li

Details Optical fiber amplifier unit and method for supplying excited li Optical fiber amplifier unit and method for supplying excited li

1995-02-28

1996-10-01

Hellner, Mark

Optical: systems and elements

Optical amplifier

Optical fiber

H01S 300

Patent

active

055615520

ABSTRACT:
A first and a second optical fiber amplifiers are connected in series.via an optical isolator. Respective excited light from the first and the second excitation light sources are input to the input terminals of 2-input/2-output branching means to be unevenly divided for composition. Composite excited light is output to the first and the second WDM couplers.

REFERENCES:
patent: 5241414 (1993-08-01), Giles et al.
patent: 5287216 (1994-02-01), Chirravuri et al.
patent: 5343320 (1994-08-01), Anderson
patent: 5355248 (1994-10-01), Hadjifotiou
patent: 5392153 (1995-02-01), Delavaux
patent: 5406411 (1995-04-01), Button et al.

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