Acousto-optical deflector

Details Acousto-optical deflector Acousto-optical deflector

1991-05-07

1992-06-16

LaRoche, Eugene R.

Optical: systems and elements

Optical modulator

Light wave directional modulation

359310, 359313, 359314, G02B 2608, G02F 133

Patent

active

051228980

ABSTRACT:
An acousto-optical deflector disclosed, comprising, two crystals and two piezoelectric transducers associated respectively with the crystals and controlled by a variable frequency RF signal for generating, in the crystals, ultrasonic waves of the same frequency. The crystals are aligned along an acoustic axis for receiving in the aggregate a single incident light beam and generating a single diffracted beam and being spaced apart from each other by a gap creating an acoustic discontinuity without deforming the light beam.

REFERENCES:
patent: 3740117 (1973-06-01), Hubby, Jr.
patent: 3985426 (1976-10-01), McNaney
patent: 4110016 (1978-08-01), Berg et al.
patent: 4330178 (1982-05-01), McNaney
patent: 4443066 (1984-04-01), Freyre
patent: 4541694 (1985-09-01), Sullivan et al.

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