Optical attenuator

Details Optical attenuator Optical attenuator

1996-11-27

1999-06-29

Lee, John D.

Optical waveguides

Accessories

Attenuator

385 33, 385 61, G02B 632

Patent

active

059179856

ABSTRACT:
There is provided an optical attenuator for reducing back-reflection by forming the sections of optical fibers of the optical attenuator into non-spherical lenses. For this purpose, in an optical attenuator for attenuating a predetermined optical signal, the sections of first and second optical fibers spaced by a predetermined distance to face each other are formed into non-spherical lenses. Thus, optical attenuation precision is improved and impacts of back-reflection is avoided.

REFERENCES:
patent: 4557557 (1985-12-01), Gleason et al.
patent: 4737004 (1988-04-01), Amitay et al.
patent: 4989938 (1991-02-01), Tamulevich
patent: 5011254 (1991-04-01), Edwards et al.
patent: 5066094 (1991-11-01), Takahashi
patent: 5319733 (1994-06-01), Emmons et al.
patent: 5321790 (1994-06-01), Takahashi et al.

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