25 October 1996 Photorefractive incoherent-erasure joint transform correlator
Author Affiliations +
A photorefractive nonlinear incoherent-erasure joint- transform correlator is presented and analyzed. The nonlinearity of this correlator can be tuned from the classical-matched filter to the phase-extraction limit by increasing the erasure beam intensity. Experimental results in Bi12GeO20 show a transition from matched-filter correlation to phase-extraction correlation by increasing the erasure beam intensity, in agreement with our theoretical results.
© (1996) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
George Asimellis, George Asimellis, Jehad Khoury, Jehad Khoury, Charles L. Woods, Charles L. Woods, } "Photorefractive incoherent-erasure joint transform correlator", Proc. SPIE 2849, Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications II, (25 October 1996); doi: 10.1117/12.255491; https://doi.org/10.1117/12.255491


Triple joint transform correlator
Proceedings of SPIE (March 09 1999)
Fingerprint database search by optical correlation
Proceedings of SPIE (March 15 1996)
Hard-clipped two-beam coupling correlators
Proceedings of SPIE (November 09 1993)

Back to Top