Semiconductor laser module

Optical waveguides – With disengagable mechanical connector – Optical fiber to a nonfiber optical device connector

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G02B 636

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active

059930730

ABSTRACT:
A semiconductor laser module in which: the distance between a semiconductor laser chip and a diffraction grating can be shortened; the light output spectrum is stabilized; and the output characteristic does not fluctuate due to the external condition. In the semiconductor laser module, a diffraction grating structure is constituted in an optical fiber by at least two diffraction gratings for reflecting light with different wavelengths respectively. The diffraction grating structure is formed in a place corresponding to the inside of the package or the inside of the coupling means.

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