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Optical Engineering

Nonlinear compansive noise reduction in joint transform correlators
Author(s): Jehad Khoury; George Asimellis; Peter D. Gianino; Charles L. Woods
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Paper Abstract

Compansive diffraction nonlinearities reduce the noise and improve the performance of joint transform correlators. The compression and expansion of the photorefractive two-beam coupling parallel optical device is similar to that of the limiting square-law serial electronic receiver. Computer simulations of this device indicate superior performance over a wide range of noise levels.

Paper Details

Date Published: 1 January 1998
PDF: 9 pages
Opt. Eng. 37(1) doi: 10.1117/1.601719
Published in: Optical Engineering Volume 37, Issue 1
Show Author Affiliations
Jehad Khoury, Tufts Univ. (United States)
George Asimellis, Tufts Univ. (United States)
Peter D. Gianino, Air Force Research Lab. (United States)
Charles L. Woods, Air Force Research Lab. (United States)


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