Photorefractive incoherent-erasure joint transform correlator

George Asimellis; Jehad Khoury; Charles L. Woods

doi:10.1117/12.255491

25 October 1996 Photorefractive incoherent-erasure joint transform correlator

George Asimellis, Jehad Khoury, Charles L. Woods

Proceedings Volume 2849, Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications II; (1996) https://doi.org/10.1117/12.255491
Event: SPIE's 1996 International Symposium on Optical Science, Engineering, and Instrumentation, 1996, Denver, CO, United States

Abstract

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.

Citation Download Citation

George Asimellis, Jehad Khoury, and 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); https://doi.org/10.1117/12.255491

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