Semiconductor laser module and Raman amplifier
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United States of America Patent
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Aug 23, 2005
Grant Date -
Jul 10, 2003
app pub date -
Dec 27, 2002
filing date -
Dec 27, 2001
priority date (Note) -
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Abstract
A semiconductor laser module has a Fabry-Perot type semiconductor laser device, an optical fiber, and first and second lenses. The tip of the optical fiber, on which the laser beam falls, is askew polished. The optical fiber is fixed in such a manner that the axis of the optical fiber makes an angle with respect to an optical axis of the laser beam. Coatings that avoid reflection are formed on the tip of the optical fiber, and on the first and second lenses.
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