Amplitude-weighting adaptive laser

Details Amplitude-weighting adaptive laser Amplitude-weighting adaptive laser

1985-11-01

1988-02-09

Moskowitz, Nelson

Modulators

Amplitude modulator

Nonlinear device controlled by modulating signal

372 33, 250201, 350607, G01B 1126, G01J 120

Patent

active

047244046

ABSTRACT:
An adaptive laser system (10) includes an adaptable laser (12), a waveform sensor (14), an amplitude distribution sensor (16), and a processor (18) for converting data from the sensors into commands for controlling the waveform of a laser beam. Amplitude distribution data is to weight waveform data as the processor determines actuator commands for deforming the laser's main mirror (22). Amplitude weighting permits more accurate determination of the waveform sensor-to-actuator-coupling matrix and more precise optimization of the on-axis intensity of the laser beam across the laser aperture.

REFERENCES:
patent: 4249140 (1981-02-01), Frieberg
patent: 4326800 (1982-04-01), Fitts
patent: 4393303 (1983-07-01), Spinhirne
patent: 4405232 (1983-09-01), Mansell
patent: 4471445 (1984-09-01), Pernich
patent: 4490039 (1984-12-01), Bruckler et al.
D. Armitage, "Holographic Phase Conjugation and Strehl Ratio", Appl. Opt., vol. 21, #17, pp. 3197-3199, 9/01/82.

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