Nitride semiconductor laser device

Details Nitride semiconductor laser device Nitride semiconductor laser device

2005-05-12

2009-08-11

Rodriguez, Armando (Department: 2828)

Coherent light generators

Particular active media

Semiconductor

C372S034000, C372S098000

Reexamination Certificate

active

07573924

ABSTRACT:
A nitride semiconductor laser device includes a nitride semiconductor laser element having a resonator end surface and capable of emitting light with a wavelength of at most 420 nm, a heat sink joined to the nitride semiconductor laser element, a stem with the heat sink mounted thereon, and a light detecting element mounted on the stem for detecting a laser beam from the nitride semiconductor laser element. The nitride semiconductor laser element, the heat sink and the light detecting element are enclosed within a cap that is joined to the stem, and an atmosphere within the cap has a dew point of at most −30° C. and an oxygen concentration of at most 100 ppm.

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