Light amplifier

Details Light amplifier Light amplifier

1995-03-01

1996-07-16

Hellner, Mark

Optical: systems and elements

Optical amplifier

Optical fiber

359177, H01S 300

Patent

active

055372449

ABSTRACT:
A light amplifier includes an optical fiber doped with a rare-earth ion, a light source emitting an exciting light and thereby exciting the optical fiber, and an optical system which applies a given light component to the optical fiber in a first direction opposite to a second direction in which a signal light is propagated through the optical fiber when a light exceeding a threshold level is propagated through the optical fiber, so that a gain of the optical fiber can be reduced.

REFERENCES:
patent: 5239607 (1993-08-01), da Silva et al.
patent: 5278686 (1994-01-01), Grasso et al.
patent: 5355250 (1994-10-01), Grasso et al.
patent: 5374973 (1994-12-01), Maxham et al.

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