Angular acousto-optical deflection device and spectrum analyzer

Details Angular acousto-optical deflection device and spectrum analyzer Angular acousto-optical deflection device and spectrum analyzer

1993-02-26

1994-11-01

LaRoche, Eugene R.

Optical: systems and elements

Optical modulator

Light wave directional modulation

359285, 359287, 359313, G02F 134

Patent

active

053611594

ABSTRACT:
Devices for deflecting an optical beam under the action of an ultrasonic beam propagating in a block of active acousto-optical material and operating under Bragg tangential conditions, with the acousto-optical interaction being anisotropic. The devices also include entry and exit faces into this material blocks which are inclined at angles .alpha. and .beta. such that the incoming beam and the emerging beam after the interaction are significantly parallel, keeping operation under Bragg tangential conditions. The devices can also be used to make a spectrum analyzer with a very large number of points and very high dynamics.

REFERENCES:
patent: 3944334 (1976-03-01), Yano et al.
patent: 4037933 (1977-07-01), Yano et al.
patent: 4040722 (1977-08-01), Nielsen
patent: 4232952 (1980-11-01), Barta et al.
patent: 4257685 (1981-03-01), Barta et al.
patent: 4659184 (1987-04-01), Sohn et al.

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