Laser layout
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United States of America Patent
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Feb 6, 1990
Grant Date -
N/A
app pub date -
Jan 5, 1989
filing date -
Jan 20, 1988
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In a laser layout, a rapid photodiode is coordinated with a fully reflecting mirror of a laser, the output signal of which is compared in a comparator with a reference voltage that may be set on a potentiometer, so that if the power density detected in the resonator of the laser by a photodiode exceeds the reference voltage, the laser is deactivated to protect a frequency doubling crystal by actuating a Q-switch and/or a shutter.
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