Optical relay amplifier with a bypass waveguide

Details Optical relay amplifier with a bypass waveguide Optical relay amplifier with a bypass waveguide

1995-04-19

1996-07-02

Lee, John D.

Optical waveguides

With optical coupler

Plural

359179, 359349, 385 45, G02B 628

Patent

active

055331530

ABSTRACT:
In an optical relay amplifier of the present invention, an inputted signal optical is divided into a plurality of lights by the first optical coupler. One of the divided inputted signal lights is amplified by an optical amplifier, the other inputted signal light is made to pass through a bypass optical waveguide path provided. The amplified light from the optical amplifier is coupled with the light that has passed through the bypass optical waveguide path by a second optical coupler, and the optical amplifier is a semiconductor laser amplifier including a V-shaped optical waveguide path and two end portions connected with the optical waveguide paths of the first and second optical couplers. A reflecting surface is formed in a returning end portion of the V-shaped optical waveguide path.

REFERENCES:
patent: 4909585 (1990-03-01), Kobayashi et al.
patent: 5170447 (1992-12-01), Heidemann
patent: 5214728 (1993-05-01), Shigematsu et al.
patent: 5233463 (1993-08-01), Grasso et al.
patent: 5282080 (1994-01-01), Scifres et al.
patent: 5416865 (1995-05-01), Fielding

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