Wavelength referencing by monitoring a voltage across a laser diode
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United States of America Patent
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Mar 10, 2015
Grant Date -
Dec 6, 2012
app pub date -
May 30, 2012
filing date -
May 31, 2011
priority date (Note) -
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Abstract
A lasing wavelength of a laser diode is determined by applying a forward current to the p-n junction of the laser diode and measuring a voltage across the p-n junction. The lasing wavelength can be determined by performing a simple wavelength calibration of the laser diode. This allows one to stabilize the lasing wavelength, and also to use the laser diode as a reference wavelength source.
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