Single Spatial Light Modulator Binary Nonlinear Optical Correlator

Bahram Javidi; Joseph L. Horner

doi:10.1117/12.951530

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29 June 1989 Single Spatial Light Modulator Binary Nonlinear Optical Correlator

Bahram Javidi, Joseph L. Horner

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Proceedings Volume 1053, Optical Pattern Recognition; (1989) https://doi.org/10.1117/12.951530
Event: OE/LASE '89, 1989, Los Angeles, CA, United States

Abstract

We describe a joint Fourier transform image correlator that employs thresholding at both the input plane and the Fourier plane. This suggests using a single binary spatial light modulator (SLM) to read in sequentially the binarized input signal and the binarized Fourier transform interference intensity. The performance of the single SLM joint Fourier transform correlator (JTC) is compared to that of the classical JTC in the areas of correlation peak intensity, peak to sidelobe ratio, signal-to-noise ratio (SNR), and correlation width. We show that the single SLM JTC outperforms the classical JTC in all such areas. Using a single binary SLM results in a significant reduction in cost, size, and complexity of the system.

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Bahram Javidi and Joseph L. Horner "Single Spatial Light Modulator Binary Nonlinear Optical Correlator", Proc. SPIE 1053, Optical Pattern Recognition, (29 June 1989); https://doi.org/10.1117/12.951530

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