Wavelength Locker With Confocal Cavity
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United States of America Patent
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Issued Date -
Jun 10, 2004
app pub date -
Dec 9, 2002
filing date -
Dec 9, 2002
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A wavelength locker having a first beam splitter to receive a light beam and separate out a portion as a sample beam; a confocal etalon to receive the sample beam and filter it into a filterization beam; a filterization photodetector to receive the filterization beam and produce a filterization signal representative of the light intensity in the filterization beam, and thus also of the light frequency in the filterization beam, sample beam, and original light beam; and a link to communicate a control signal, based on the filterization signal, to the light source producing the light beam to lock the wavelength or the frequency.
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