Optical waveguides – With optical coupler – Particular coupling structure
Patent
1996-09-19
1999-02-23
Sanghavi, Hemang
Optical waveguides
With optical coupler
Particular coupling structure
385 14, 385 37, 372 50, G02B 630, H01S 319
Patent
active
058752749
ABSTRACT:
An optoelectronic transmission-reception device has a semiconductor laser and reception diode fashioned monolithically integrated in a semiconductor chip whose laser resonator is formed by two outer limiting surfaces of the semiconductor chip arranged opposite one another. The laser light emitted by the semiconductor laser is incident into a light waveguide coupled to one limiting surface of the semiconductor chip at the light waveguide side. The coupling of the light waveguide to the semiconductor laser and reception diode fashioned monolithically integrated in the semiconductor chip is fashioned such and the limiting surface of the semiconductor chip at the light waveguide side is of such a nature that, given an adequately low reflectivity of the laser emission emitted by the laser that is required for adequate assurance of the laser function, an optimally large part of the radiation received via the light waveguide is incident into the semiconductor laser and reception diode.
REFERENCES:
patent: 3952265 (1976-04-01), Hunsperger
patent: 4045120 (1977-08-01), de Corlieu et al.
patent: 4601535 (1986-07-01), Tanaka et al.
patent: 5031188 (1991-07-01), Koch et al.
patent: 5392308 (1995-02-01), Welch et al.
patent: 5392372 (1995-02-01), Kurata et al.
patent: 5617439 (1997-04-01), Kakimoto
Patent Abstract of Japan, vol. 10, No. 264, (P-495), dated 09 Sep. 1986 & JP-A-61-090108 dated 08 May 1986.
Sanghavi Hemang
Siemens Aktiengesellschaft
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