Apparatus and method for optically controlling the output energy

Details Apparatus and method for optically controlling the output energy Apparatus and method for optically controlling the output energy

1992-07-02

1995-01-17

Bovernick, Rodney B.

Coherent light generators

Particular beam control device

Control of pulse characteristics

372 31, H01S 310

Patent

active

053831993

ABSTRACT:
Apparatus for optically controlling the output energy of a pulsed laser source comprising a laser producing a plurality of laser pulses in a laser beam. An optical attenuator is disposed in the laser beam to attenuate the energy in the laser beam to provide an attenuated laser beam, and a pick-off is provided for sensing the energy in the attenuated laser beam. A controller is coupled to the pick-off for controlling the optical attenuator to vary the energy in the attenuated laser beam to thereby vary the output fluence from the apparatus.

REFERENCES:
patent: 4611270 (1986-09-01), Klauminzer et al.
patent: 4641912 (1987-02-01), Goldenberg
patent: 4732448 (1988-03-01), Goldenberg
patent: 4962502 (1990-10-01), Adams
patent: 4998794 (1991-03-01), Holzman
patent: 5016964 (1991-05-01), Donnelly
patent: 5128601 (1992-07-01), Orbach et al.
patent: 5151909 (1992-09-01), Davenport et al.
Bennett and Byer, "Variable Laser Attenuators--Old and New" Laser Focus, Apr. 1983 pp. 55-63.

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