External cavity laser
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United States of America Patent
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Nov 17, 2015
Grant Date -
Aug 6, 2015
app pub date -
Aug 6, 2014
filing date -
Mar 9, 2006
priority date (Note) -
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Abstract
Embodiments of systems and methods are provided for a tunable laser device. The tunable laser device may include a diffraction grating connected to a pivot arm that pivots the diffraction grating about a pivot point to tune the laser device. In pivoting the diffraction grating about the pivot point, both the wavelength to which the diffraction grating is tuned and the length of the optical cavity may be changed. The length of the pivot arm may be selected to reduce the number of mode hops of the tunable laser device when tuning the laser device over its tuning range.
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