Optoelectronic device comprising a semiconductor laser and an op

Details Optoelectronic device comprising a semiconductor laser and an op Optoelectronic device comprising a semiconductor laser and an op

1992-02-12

1993-06-01

Davie, James W.

Optical waveguides

With disengagable mechanical connector

Optical fiber to a nonfiber optical device connector

372 36, 372109, 385 34, G02B 632

Patent

active

052167372

ABSTRACT:
The invention relates to an optoelectronic device comprising a semiconductor laser enclosed in an envelope, an optical fibre coupled to the semiconductor laser, and further coupled to at least one optical isolator and an outgoing optical fibre (pigtail). According to the invention, the semiconductor laser and the optical isolator are each enclosed in a separate module. The laser module mainly provides space to the semiconductor laser and to an optical fibre coupled thereto and ending in a ferrule in a tubular projection of the laser module. The module for the optical isolator is tubular in shape and contains in that order a first graded index lens, an optical isolator, a second graded index lens, and an outgoing optical fibre (pigtail) coupled to this second graded index lens through a ferrule. The tubular projection of the laser module and an end portion of the tubular optical module are so shaped in relation to one another that a mechanical coupling of the two modules can be obtained whereby the optical coupling between the modules is achieved simultaneously.

REFERENCES:
patent: 4616899 (1986-10-01), Schlafer
patent: 4731795 (1988-03-01), Clark et al.
patent: 4803689 (1989-02-01), Shibanuma
patent: 5046798 (1991-09-01), Yagiu et al.
patent: 5082343 (1992-01-01), Coult et al.
patent: 5127074 (1992-06-01), Wantanabe et al.

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