Semiconductor laser device

Details Semiconductor laser device Semiconductor laser device

1989-08-16

1991-06-25

Epps, Georgia

Coherent light generators

Particular resonant cavity

Distributed feedback

372 46, 372 48, H01S 308

Patent

active

050273680

ABSTRACT:
A semiconductor laser device with a resonator containing an active region for laser oscillating operation is disclosed which comprises a third-order diffraction grating with a periodic corrugation for producing feedback of laser light, the corrugation being of substantially rectangular shape, wherein the ratio of the width of each convex portion of the corrugation to the periodicity of the corrugation is in the range of 0.20 to 0.25, 0.40 to 0.60, or 0.70 to 0.95.

REFERENCES:
patent: 4740987 (1988-04-01), McCall, Jr. et al.
Streifer et al., IEEE Journal of Quantum Electronics, vol. QE-11, No. 11, (Nov. 1975), pp. 867-873.
Nakano et al., Applied Physics Letters, vol. 49, No. 18, (Nov. 3, 1986), pp. 1145-1147.
Chong et al., Electronics Letters, vol. 24, No. 7, (Mar. 31, 1988), pp. 416-418.
Temkin et al., Journal of Lightwave Technology, vol. LT-4, No. 5, (May 1986), pp. 520-529.
Kawanishi et al., Japanese Journal of Applied Physics, vol. 17, No. 9, (Sep. 1978), pp. 1599-1603.

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