Optical waveguides – With disengagable mechanical connector – Optical fiber to a nonfiber optical device connector
Patent
1998-02-20
1999-11-30
Ullah, Akm E.
Optical waveguides
With disengagable mechanical connector
Optical fiber to a nonfiber optical device connector
G02B 636
Patent
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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Hamakawa Atsushi
Shigehara Masakazu
Sumitomo Electric Industries Ltd.
Ullah Akm E.
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