Optical semiconductor apparatus, fabrication method thereof, mod

Details Optical semiconductor apparatus, fabrication method thereof, mod Optical semiconductor apparatus, fabrication method thereof, mod

1996-12-26

1999-08-31

Bovernick, Rodney

Coherent light generators

Particular active media

Semiconductor

372 96, 372 45, 372 27, H01S 318

Patent

active

059463368

ABSTRACT:
An optical semiconductor apparatus includes a substrate, a first region formed on the substrate, a second region formed on the substrate, and a stimulating unit. The first region includes a first waveguide which extends in a light propagation direction and is constructed so as to permit light waves in two different polarization modes to be propagated in the propagation direction. The first waveguide contains a first active region which is constructed such that a gain for one of the different polarization modes is dominant. The second region includes a second waveguide which extends in the propagation direction, is coupled to the first waveguide and is constructed so as to permit light waves in the different polarization modes to be propagated in the propagation direction. The second waveguide contains a second active region which is constructed such that a gain for the other of the different polarization modes is dominant. At least one of the first and second active regions includes a first active layer, in which a gain for one of the different polarization modes is dominant, and a second active layer, in which a gain for the other of the different polarization modes is dominant. The stimulating unit stimulates the first and second active regions independently from each other.

REFERENCES:
patent: 4918701 (1990-04-01), Amann et al.
patent: 5117469 (1992-05-01), Cheung et al.
patent: 5444730 (1995-08-01), Mizutani

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