Semiconductor laser device of variable wavelength type

Details Semiconductor laser device of variable wavelength type Semiconductor laser device of variable wavelength type

1988-10-07

1989-12-05

Sikes, William L.

Coherent light generators

Particular active media

Semiconductor

372 46, 372 50, 372 96, H01S 319

Patent

active

048857530

ABSTRACT:
A tunable semiconductor laser device has an active region for generating light, and a feedback region which is optically coupled with the active region and includes a perturbation portion having non-uniform perturbation period. In this semiconductor laser device, the light intensity distribution in the feedback region is changed to vary the degree of coupling of light propagated in the feedback region with a desired part of the perturbation portion, thereby varying the wavelength of emitted light.

REFERENCES:
patent: 4464762 (1984-08-01), Furuya
"Extended Abstract No. 29a-T-7 (The 47th Autumn Meeting, 1986), The Japanese Society of Applied Physics".

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