Semiconductor laser device, semiconductor laser module, and...

Details Semiconductor laser device, semiconductor laser module, and... Semiconductor laser device, semiconductor laser module, and...

2005-08-02

2005-08-02

Harvey, Minsun Oh (Department: 2828)

Coherent light generators

Particular resonant cavity

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C372S043010, C372S045013, C372S046012, C372S102000, C372S103000

Reexamination Certificate

active

06925102

ABSTRACT:
A semiconductor laser device which has a diffraction grating partially provided in the vicinity of an active layer formed between a radiation-side reflection film provided on a radiation-side end surface of a laser beam and a reflection film provided on a reflection-side end surface of the laser beam, and which outputs a laser beam having a desired oscillation longitudinal mode based on a wavelength selection characteristic of at least the diffraction grating. The diffraction grating is formed in isolation with an isolation distance of Ls=15 μm from the radiation-side reflection film.

REFERENCES:
patent: 5077752 (1991-12-01), Tada et al.
patent: 6198863 (2001-03-01), Lealman et al.
patent: 6384963 (2002-05-01), Ackerman et al.

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