Highly stable photoreceiver

Details Highly stable photoreceiver Highly stable photoreceiver

1997-03-13

1998-09-08

Palmer, Phan T. H.

Optical waveguides

With optical coupler

Input/output coupler

385 31, 385 33, 385 36, G02B 632

Patent

active

058057498

ABSTRACT:
A photoreceiver designed to suppress interference attributable to multiple reflection comprises an optical fiber, a light receiving device, a first gradient index lens having flat entrance and exit surfaces and disposed with its optical axis inclined to the optical axis of the photoreceiver, and a second gradient index lens having flat entrance and exit surfaces and disposed with its optical axis inclined to the optical axis of the photoreceiver. The first gradient index lens collimates light rays emitted through the optical fiber and the second gradient index lens focuses collimated light rays received from the lens on the light receiving surface of the light receiving device .

REFERENCES:
patent: 5276747 (1994-01-01), Pan
patent: 5446813 (1995-08-01), Lee et al.
patent: 5689359 (1997-11-01), Kurata et al.

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