Distributed feedback semiconductor laser

Details Distributed feedback semiconductor laser Distributed feedback semiconductor laser

1985-02-08

1986-02-25

Davie, James W.

Coherent light generators

Particular beam control device

Optical output stabilization

372 50, 372 96, H01S 319

Patent

active

045731586

ABSTRACT:
A semiconductor laser of distributed feedback type, which is provided with a portion having periodic refractive index variations in the direction of light propagation in one of an active layer and a layer adjacent thereto and is caused to perform laser oscillation by injecting a current into the active layer portion. In accordance with the present invention, a current injection region having no periodic refractive index variations is formed on an extension of the portion having the periodic refractive index variations.

REFERENCES:
patent: 3524146 (1970-08-01), Mohn
patent: 4360921 (1982-11-01), Scifres et al.

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