Semiconductor laser module and optical fiber amplifier
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United States of America Patent
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Dec 1, 1998
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N/A
app pub date -
Apr 8, 1997
filing date -
Apr 8, 1996
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Abstract
A semiconductor laser module includes a semiconductor laser having an active region between a light-reflecting surface and a light-exit surface thereof, and an optical fiber optically coupled to the semiconductor laser and including an optical fiber diffraction grating. The optical fiber diffraction grating selectively reflects light within a predetermined wavelength band. The wavelength band has a width larger than a wavelength interval of a longitudinal mode of light resonating between the light-reflecting surface and the light-exit surface.
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