Laser layout

Details Laser layout Laser layout

1989-01-05

1990-02-06

Scott, Jr., Leon

Coherent light generators

Particular beam control device

372 38, H01S 310

Patent

active

048993433

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.

REFERENCES:
patent: 4181899 (1980-01-01), Liu
patent: 4398294 (1983-08-01), Miller et al.
patent: 4494873 (1985-01-01), Perlmutter et al.
patent: 4544839 (1985-10-01), Weil et al.
patent: 4617666 (1986-10-01), Liu

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