Ridge waveguide optical devices

Details Ridge waveguide optical devices Ridge waveguide optical devices

1986-11-04

1989-02-14

Davie, James W.

Coherent light generators

Particular resonant cavity

Distributed feedback

350 9612, 357 17, 372 45, H01S 319

Patent

active

048051845

ABSTRACT:
A semiconductor device is disclosed that comprises a base semiconductor portion and, thereon, first and second elevated semiconductor portions separated by a channel. The uppermost surface of the first elevated semiconductor portion carries a metal electrical contact layer and the uppermost of the second a dielectric layer. The surfaces defining the channel are substantially free of metal and dielectric. The structure can be used in a ridge waveguide laser, the first elevated semiconductor portion constituting the ridge. Distributed feedback corrugations may be incorporated in such devices or in other ridge waveguide structures.

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