Uncooled, low profile, external cavity wavelength stabilized laser, and portable Raman analyzer utilizing the same
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United States of America Patent
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Issued Date -
Apr 27, 2006
app pub date -
Aug 30, 2005
filing date -
Aug 30, 2004
priority date (Note) -
Abandoned
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Abstract
The current invention relates to several different ways to realize 'uncooled lasers' (i.e., a laser source without a temperature stabilization element, such as a thermal electric cooler) which have a sufficiently stable, narrow-linewidth source as to be useful as a Raman pump source in portable instruments and systems. These include desensitizing the laser wavelength against mechanical deformations and distortions caused by the temperature changes around the laser source. In addition, the present invention also discloses improved techniques for reducing the profile of the uncooled, wavelength stabilized laser, so as to facilitate its use in portable applications, including hand-held Raman analyzers.
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