Intensity dependent beam deflector

Details Intensity dependent beam deflector Intensity dependent beam deflector

1990-01-03

1992-06-09

James, Andrew J.

Optical: systems and elements

Optical modulator

Light wave temporal modulation

359240, G02F 129, G01J 1100

Patent

active

051212463

ABSTRACT:
A thermal lensing material deflects a signal laser beam in accordance with he changing intensity of a contol beam. The intensity of the control laser beam creates a thermal lense effect to vary the refractive index of the crystal to responsively displace the signal laser beam. The relative orientations of the beams to the crystal and the degree to which the two laser beams are parallel to the optic axis also may be introduced as variables to effect the degree of displacement of the signal laser beam.

REFERENCES:
patent: 3434779 (1969-03-01), Damen et al.
patent: 4262198 (1981-04-01), Gupta et al.
patent: 4508431 (1985-04-01), Henshaw
patent: 4772785 (1988-09-01), Cheng et al.
patent: 4856860 (1989-08-01), Silberberg et al.
patent: 4880296 (1989-11-01), Ditman, Jr.

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