LASER SYSTEM
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United States of America Patent
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Issued Date -
Jan 10, 2013
app pub date -
Mar 4, 2011
filing date -
Mar 18, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A laser system 100 includes: a laser module 10 including: a DFB laser 12 that oscillates a laser beam 24; a heater 14 that adjusts a temperature of the DFB laser 12; and a harmonic generation element 18 that converts the laser beam 24 into a harmonic beam 34 of the laser beam 24; and a control unit 40 that modulates a wavelength of the laser beam 24, detects a detection signal synchronized with a modulation signal used for the modulation from an intensity of the harmonic beam 34, and controls a value of a heater current 28 to be injected to the heater 14 so as to reduce an amplitude of the detection signal.
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