Branching optical waveguide for an index-guided semiconductor la

Details Branching optical waveguide for an index-guided semiconductor la Branching optical waveguide for an index-guided semiconductor la

1985-10-24

1988-06-21

Davie, James W.

Coherent light generators

Particular active media

Semiconductor

372 50, H01S 319

Patent

active

047529326

ABSTRACT:
A semiconductor laser device uses an optical waveguide which is in a single mode in the center portion thereof and is in a branching mode at each of both end portions thereof to form two branch waveguides which are positioned symmetrically with respect to the waveguiding direction of the laser light and which are parallel to each other near the facets, thereby attaining a 0.degree.-phase shift between light waves propagated in the two branch waveguides and resulting in laser lights with a 0.degree.-phase shift therebetween.

REFERENCES:
patent: Re31806 (1985-01-01), Scifres et al.
patent: 4185256 (1980-01-01), Scifres et al.
patent: 4674827 (1987-06-01), Izutsu et al.

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