Coherent light generators – Particular active media – Semiconductor
Patent
1995-02-28
1996-07-02
Davie, James W.
Coherent light generators
Particular active media
Semiconductor
257 80, 372 45, 372 46, 372 92, 372 96, H01S 319
Patent
active
055330410
ABSTRACT:
An optical transmission and reception device comprises an optical transmission region including an active layer which oscillates and outputs laser beam of a wavelength .lambda.1 on a transmission state, and guides received light of a wavelength .lambda.2 different from the wavelength .lambda.1 on a reception state and an optical reception region including a light detecting device for detecting the received light guided by the active layer and converting the received light into electric signals. The optical transmission and reception device having an optimum structure for the transmission and reception can be realized. Accordingly an optical transmission and reception device having good characteristics, which are suitably used in bidirectional communications by optical subscribers' systems, and optical parallel link data transmission in computers.
REFERENCES:
patent: 4349906 (1982-09-01), Scitres et al.
patent: 5220573 (1993-06-01), Sakata et al.
patent: 5281829 (1994-01-01), Chinen
patent: 5404373 (1995-04-01), Cheng
Patent Abstracts of Japan, vol. 12, No. 357 (E-662), Sep. 26, 1988.
Patent Abstracts of Japan, vol. 12, No. 498 (E-698), Dec. 24, 1988.
Matsuda Manabu
Shoji Hajime
Davie James W.
Fujitsu Limited
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