Laser/detector hybrid with mirror source and diffracted return b

Details Laser/detector hybrid with mirror source and diffracted return b Laser/detector hybrid with mirror source and diffracted return b

1992-04-14

1994-02-08

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

250239, 369 4414, G11B 700

Patent

active

052850625

ABSTRACT:
The present invention provides a semiconductor laser and a photodector on a supporting substrate. The supporting substrate is inserted into a housing with a 45 degree mirror for the purpose of redirecting the light emitting through the edge of the laser to propagate along the optical axis of the hybrid device. A hologram lens is mounted at the output end of the hybrid device to diffract the returned beam to the photosensitive ares of the detector without returning through the mirror.

REFERENCES:
patent: 4437177 (1984-03-01), Watabe et al.
patent: 4669073 (1987-05-01), Wakabayashi et al.
patent: 4731772 (1988-03-01), Lee
patent: 4772784 (1988-09-01), Yoshitoshi et al.
patent: 4906839 (1990-03-01), Lee
patent: 5005162 (1991-04-01), Mitsumori et al.
patent: 5062098 (1991-10-01), Hori et al.
patent: 5111448 (1992-05-01), Komma et al.
patent: 5136424 (1992-08-01), Cox et al.
patent: 5191204 (1993-03-01), Dickson et al.

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