Experimental demonstration of the holographic incoherent-erasure joint-transform correlator

George Asimellis; Jehad Khoury; Charles L. Woods

doi:10.1117/1.601493

1 September 1997 Experimental demonstration of the holographic incoherent-erasure joint-transform correlator

George Asimellis, Jehad Khoury, Charles L. Woods

Optical Engineering, Vol. 36, Issue 9, (September 1997). https://doi.org/10.1117/1.601493

We report the first experimental realization of the incoherenterasure joint-transform correlator operating on the erasure nonlinearities of degenerate four-wave mixing in a real-time holographic medium. Our experiment used the joint-transform spectrum produced on a shorterwavelength laser beam to erase a longer-wavelength four-wave mixing hologram in Bi12GeO20. We demonstrate a transition from matched-filter correlation to phase-extraction correlation by increasing the erasure beam intensity, in quantitative agreement with the weak-coupling photorefractive model and simulation results.

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George Asimellis, Jehad Khoury, and Charles L. Woods "Experimental demonstration of the holographic incoherent-erasure joint-transform correlator," Optical Engineering 36(9), (1 September 1997). https://doi.org/10.1117/1.601493

Published: 1 September 1997

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