Laser pulse modulator

Details Laser pulse modulator Laser pulse modulator

1987-03-16

1989-03-21

Sikes, William L.

Coherent light generators

Particular component circuitry

Optical pumping

372 31, H01S 300

Patent

active

048150860

ABSTRACT:
The invention is directed to the power control of a gas laser being moved by a prime mover along at least two different axes at various speeds to provide effectively constant output power to the workpiece surface. Signals from the prime mover axis representative of the speed of movement of each axis are separately rectified then summed and modulated with a positively offset triangular wave signal. The resulting output signal is a composite width modulated square wave pulse representative of the instantaneous laser output power required to maintain an effective constant power to the workpiece at various speeds and directions of movement of the laser.

REFERENCES:
patent: 3406347 (1968-10-01), Young
patent: 3515938 (1968-04-01), Morse
patent: 4347610 (1982-08-01), Meuleman
patent: 4634892 (1987-01-01), Isbell et al.

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