Distributed-feedback semiconductor laser device

Details Distributed-feedback semiconductor laser device Distributed-feedback semiconductor laser device

1985-07-26

1988-10-04

Sikes, William L.

Coherent light generators

Particular resonant cavity

Distributed feedback

372 45, 372 50, 372102, H01S 308, H01S 319

Patent

active

047759801

ABSTRACT:
A distributed feedback semiconductor laser provided with a grating which effects optical feedback by means of periodic corrugation disposed inside an optical resonator. The optical resonator has at least two regions having different Bragg wavelengths, and these regions are arranged longitudinally in the direction of an optical axis. The laser device can realize stable single longitudinal mode oscillation through variation of the refractive indexes of the regions nonuniformly around an average value.

REFERENCES:
patent: 4096446 (1978-06-01), Haus et al.
patent: 4468772 (1984-08-01), Oudar
patent: 4577321 (1986-03-01), Carney et al.

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