Abstract

We analyze the influence of different optical coding methods of the input image in optical correlators. The noise robustness and the optical efficiency of the correlator are investigated. We show in particular that the signal-to-noise ratio is greatly dependent on the coding method. It decreases drastically for large phase modulation.

© 1994 Optical Society of America

Multicriteria characterization of coding domains with optimal Fourier spatial light modulator filters

V. Laude and Ph. Réfrégier
Appl. Opt. 33(20) 4465-4471 (1994)

Spatial fluctuations of an optical field modulated with spatial light modulators and noisy input signals

Philippe Réfrégier and Vincent Laude
J. Opt. Soc. Am. A 12(6) 1338-1345 (1995)

Noise robustness of optical correlation for amplitude or phase modulation of the input image

S. Maze and Ph. Refregier
Opt. Lett. 17(6) 426-428 (1992)

Input-image homogenization as a method to improve a correlator’s discrimination capability

Leonid P. Yaroslavsky, Octavio López-Coronado, and Juan Campos
Opt. Lett. 23(14) 1129-1131 (1998)

Effects of systematic phase errors on phase only correlation

Robert W. Cohn and Joseph L. Horner
Appl. Opt. 33(23) 5432-5439 (1994)