25 October 1996 Photorefractive incoherent-erasure joint transform correlator
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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.
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George Asimellis, Jehad Khoury, 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

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