A joint transform correlator has been demonstrated that incorporates phase conjugation in a BaTiO3 crystal to correct for distortions in a liquid-crystal television (LCTV) spatial light modulator. The optical arrangement permits real-time operation in spite of the relative slowness of the photorefractive effect. Correlation outputs displayed on a video monitor are illustrated for inputs to the LCTV from a video camera viewing a stationary scene. The sensitivity of the correlator to target rotation is also presented.
© 1987 Optical Society of America
Original Manuscript: February 13, 1987
Manuscript Accepted: May 21, 1987
Published: August 1, 1987
Michael C. Hamilton and Bryon L. Powers, "Real-time joint transform correlator with phase conjugation for distortion correction," Opt. Lett. 12, 549-551 (1987)