1977-06-07
1978-08-29
Sikes, William L.
350 9613, H03H 926
Patent
active
041100166
ABSTRACT:
An acousto-optic correlator device comprised of two parallel piezoelectric rystals having different acoustic velocities. Acoustic transducers are located at one end of the respective crystals, and high frequency acoustic waves, the pulse envelopes of which correspond to the signals to be correlated are simultaneously launched from the transducers on the respective crystals. One of the acoustic waves "slides" past the other, and a laser beam, which is directed approximately perpendicular to the direction of acoustic propagation is modulated by the acoustic waves. The laser beam is demodulated and the desired correlation is obtained.
REFERENCES:
patent: 4012120 (1977-03-01), Kagiwada et al.
Adams, legal representative by Allen B.
Berg Norman J.
Smith, deceased Bob L.
Edelberg Nathan
Elbaum Saul
Gibson Robert P.
Sikes William L.
The United States of America as represented by the Secretary of
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