Method of amplitude modulating a laser beam

Details Method of amplitude modulating a laser beam Method of amplitude modulating a laser beam

1989-04-28

1990-09-04

Tarcza, Thomas H.

Amplifiers

Parametric amplifiers

Semiconductor type

372 27, H01S 300

Patent

active

H00008222

ABSTRACT:
An acousto-optic tunable filter (AOTF), instead of being used for its intended use of frequency or wavelength tuning a laser from within its resonant cavity, is used outside the laser cavity to amplitude modulate the output beam of the laser. This is accomplished by directing the laser output beam into the AOTF and applying an A.C. voltage to a piezo-electric transducer which is a part of the AOTF.

REFERENCES:
patent: 3958863 (1976-05-01), Isaacs et al.
patent: 4217036 (1980-08-01), Chang
patent: 4448494 (1984-05-01), Freyre
patent: 4460250 (1984-07-01), Freyre et al.
patent: 4793676 (1988-12-01), Risk

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