Acoustic wave delay system with an optically controlled delay me

Details Acoustic wave delay system with an optically controlled delay me Acoustic wave delay system with an optically controlled delay me

1989-12-20

1992-06-16

LaRoche, Eugene R.

Wave transmission lines and networks

Coupling networks

Delay lines including elastic bulk wave propagation means

333147, H03H 938

Patent

active

051227665

ABSTRACT:
A delay device for a frequency signal comprises an element made of acousto-optical material, provided with a first piezo-electric transducer transmitting an acoustic signal in the element and with a second piezoelectric transducer capable of detecting an acoustic wave. A light beam goes through the element and creates a field charge in the element. This charge field plays the role of a reflector for the acoustic wave transmitted by the transducer. By translating the beam along the direction Z, the propagation time of the transmitted acoustic wave is made to vary.

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