Smart-pixel spatial light modulators (SLMs) with optical inputs and outputs can offer a powerful combination of optical and electronic processing functions. Here we report on work in progress on an experimental FLC-VLSI SLM intended for use in the first Fourier plane of a joint transform correlator (JTC). The JTC SLM is designed to eliminate the unwanted autocorrelation term that normally exists in the JTC's output. One of the JTC's input images is modulated in phase or amplitude causing a modulation term to occur in the intensity of their joint transform. The smart-pixel SLM selectivley responds to the modulation term and displays the result as an image that will pass through the second and final Fourier transform lens (each pixel contains both a photodetector and an optical modulator).

Date Published: 9 October 1998
PDF: 12 pages
Proc. SPIE 3466, Algorithms, Devices, and Systems for Optical Information Processing II, (9 October 1998); doi: 10.1117/12.326780

Published in SPIE Proceedings Vol. 3466:
Algorithms, Devices, and Systems for Optical Information Processing II
Bahram Javidi; Demetri Psaltis, Editor(s)