Slm Inducd Phase Distortion And Its Effect On Optical Correlation

Joseph L. Horner

doi:10.1117/12.939980

21 August 1987 Slm Inducd Phase Distortion And Its Effect On Optical Correlation

Joseph L. Horner;

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Proceedings Volume 0754, Optical and Digital Pattern Recognition; (1987) https://doi.org/10.1117/12.939980
Event: OE LASE'87 and EO Imaging Symposium, 1987, Los Angeles, CA, United States

Abstract

A spatial light modulator (SLM) operating as an amplitude modulating input element in a coherent optical correlator introduces a certain amount of phase shift at each pixel. We examine the effect this has on the overall quality of the correlation signal, defined in terms of SNR and correlation peak full-width-half-maxi-mum (FWHM) response. An interesting and unexpected effect is found, namely that if the attendant phase distortion is properly incorpored into the reference function, it can greatly enhance the correlation signal.

Citation Download Citation

Joseph L. Horner, "Slm Inducd Phase Distortion And Its Effect On Optical Correlation", Proc. SPIE 0754, Optical and Digital Pattern Recognition, (21 August 1987); doi: 10.1117/12.939980; https://doi.org/10.1117/12.939980

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