Optical: systems and elements – Diffraction – Using fourier transform spatial filtering
Patent
1996-10-04
1999-05-11
Henry, Jon W.
Optical: systems and elements
Diffraction
Using fourier transform spatial filtering
359559, 359 7, 359 29, 364822, 382210, G02B27/46
Patent
active
059033908
ABSTRACT:
An all optical photorefractive holographic joint transform correlator provides a first correlation plane output port using two-beam coupling, and a second correlation plane output port employing four-wave mixing. With appropriate input beam intensity ratios, the first port output is capable of high discrimination, while simultaneously the second port offers a low discrimination output.
REFERENCES:
patent: 5337170 (1994-08-01), Khoury et al.
patent: 5493444 (1996-02-01), Khoury et al.
patent: 5604634 (1997-02-01), Khoury et al.
Asimellis George
Kane Jonathan S.
Khoury Jehad
Woods Charles L.
Chang Audrey
Henry Jon W.
Nathans Robert L.
The United States of America as represented by the Secretary of
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