Distributed feedback semiconductor laser device

Details Distributed feedback semiconductor laser device Distributed feedback semiconductor laser device

1986-01-06

1987-12-29

LaRoche, Eugene R.

Coherent light generators

Particular active media

Semiconductor

372 46, 372 48, 372 96, 357 16, H01S 319, H01S 308, H01L 29161, H01L 29205

Patent

active

047165707

ABSTRACT:
A distributed feedback semiconductor laser device comprising an active layer positioned between a first cladding layer and a second cladding layer, and an absorption layer positioned between the active layer and one of the cladding layers, the absorption layer having grooves to form a diffraction grating with a given periodicity in the direction of the propagation of laser light.

REFERENCES:
patent: 4233090 (1980-11-01), Haurylo et al.
patent: 4553239 (1985-11-01), Akiba et al.
patent: 4618959 (1986-07-01), Mito

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