Optical attenuation fiber assembly

Details Optical attenuation fiber assembly Optical attenuation fiber assembly

1996-03-19

1997-10-14

Lee, John D.

Optical waveguides

Accessories

Attenuator

385 51, 385 72, 385 85, 385 96, G02B 6255, G02B 636

Patent

active

056779763

ABSTRACT:
A mass-producible optical attenuation fiber assembly is provided with a first optical fiber with a predetermined attenuation, a second optical fiber connected to a first end of the first optical fiber and a ferrule for fixedly holding the other end of the first optical fiber. In this optical attenuation fiber assembly, the first optical fiber is doped with impurities to achieve a predetermined first attenuation and shortened to obtain a predetermined second attenuation. In the optical attenuation fiber assembly, the second optical fiber may also be cut to a fixed length and the cut edge portion of the second optical fiber may be fixed to another ferrule and polished. The latter ferrule is coupled to the former ferrule through an alignment sleeve.

REFERENCES:
patent: 4723828 (1988-02-01), Garel-Jones et al.
patent: 4728170 (1988-03-01), Robertson
patent: 5109468 (1992-04-01), Tamulevich et al.
patent: 5216728 (1993-06-01), Charlton et al.
patent: 5384885 (1995-01-01), Diner

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