Laser apparatus and method employing fuzzy logic based pulse wid

Details Laser apparatus and method employing fuzzy logic based pulse wid Laser apparatus and method employing fuzzy logic based pulse wid

1993-03-01

1994-02-01

Scott, Jr., Leon

Coherent light generators

Particular beam control device

Optical output stabilization

372 8, 372 38, H01S 313

Patent

active

052837947

ABSTRACT:
A laser apparatus is provided in which a laser diode is driven with a plurality of drive pulses to generate a plurality of first laser pulses. Each first laser pulse occurs during a respective window and has a predetermined pulse width determined by a corresponding drive pulse. An electronic shutter which intercepts the laser beam is then opened in response to a trigger signal to permit a second laser pulse to be emitted from the laser rod during each window. The laser energy output of each of the second laser pulses from the laser rod is continuously monitored on a window by window basis to determine if the energy output of each of the second laser pulses exhibits a predetermined desired value. The energy output of the second laser pulse observed during each of the windows is then reported as a respective energy report signal set for each of the windows.

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patent: 5140601 (1992-08-01), Shimada et al.
patent: 5140603 (1982-08-01), Anderson et al.
patent: 5144631 (1992-09-01), Okino
patent: 5157675 (1992-10-01), Takagi

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