Multichannel cavity laser
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United States of America Patent
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May 19, 1992
Issued Date -
N/A
app pub date -
Dec 11, 1990
filing date -
Nov 23, 1988
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Expired
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Abstract
A switchable multichannel external cavity injection laser incorporates a diffraction grating between a linear array of n reflectors and a common reflector to define a set of n optical cavities having different frequency bands. Each of the (n+1) reflectors is provided by the optically distal end of an associated semiconductor laser amplifier whose optically proximal end is arranged to be substantially non-reflective.
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