Distributed feedback semiconductor laser

Details Distributed feedback semiconductor laser Distributed feedback semiconductor laser

1991-10-02

1993-12-14

Bovernick, Rodney B.

Coherent light generators

Particular resonant cavity

Distributed feedback

H01S 308

Patent

active

052710300

ABSTRACT:
A distributed feedback semiconductor laser includes a diffraction grating having a plurality of different pitches. Although it is a multi mode laser, an oscillating mode having a longitudinal single mode characteristic is obtained. The distributed feedback semiconductor laser is thus free from nonlinear characteristics but has low-noise characteristics.

REFERENCES:
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patent: 5070509 (1991-12-01), Meyers
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Koch et al., "Semiconductor Lasers for Coherent Optical Fiber Communications," Journal of Lightwave Technology, vol. 8, No. 3, Mar. 1990, pp. 274-293.
Utaka et al., "Effect of Mirror Facets on Lasing Characteristics of Distributed Feedback InGaAsP/InP Laser Diodes at 1.5 .mu.m Range," IEEE Journal of Quantum Electronics, vol. QE-20, No. 3, Mar. 1984.
Yano et al., "Extremely Low-Noise Facet-Reflectivity-Controlled InGaAsP Distributed-Feedback Lasers," Journal of Lightwave Technology vol. LT-4, No. 10, Oct. 1986, pp. 1454-1459.
Wu et al., "Wavelngth tuning and switching of a coupled distributed feedback and Fabry-Perot cavity laser," Journal of Applid Physics, Jan. 15, 1988, pp. 291-294.
A. P. Mozer et al., "Herstellung und Eigenschaften von 1,3 Mum-Dauerstrich-Single-Mode-Lasern", Archiv Fur Elektronik & Ubertragungstechnik, vol. 41, No. 1, Jan./Feb. 1987, pp. 1-9.
Patent Abstracts of Japan, vol. 15, No. 379 (E-1115), Sep. 25, 1991.
Patent Abstracts of Japan, vol. 11, No. 108 (E-495) (2555) Apr. 4, 1987.
Patent Abstracts of Japan, vol. 014550, (E1009) Dec. 6, 1990.

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