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Proceedings Paper

Highly integrated single-chip optical correlator
Author(s): Michael J. O'Callaghan; David J. Ward; Stephen H. Perlmutter; Lianhua Ji; Christopher M. Walker
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Paper Abstract

Barriers to commercialization of optical correlators include the complexity and cost of their manufacture, their large size compared to typical electronic processors, and the cost of their components. Using sub-micron CMOS VLSI fabrication processes it is possible to build the two SLMs and photodetector array of a Vander Lugt correlator on a single silicon die. The correlator's lenses can be fabricated on a single piece of glass using diffractive optics technology and then attached to the CMOS die to form a monolithic assembly. This approach greatly reduces the mechanical degrees of freedom that must be controlled by the correlator's housing thus lowering cost, reducing size, and improving reliability. Here we report on the design and performance of a prototype.

Paper Details

Date Published: 9 October 1998
PDF: 8 pages
Proc. SPIE 3466, Algorithms, Devices, and Systems for Optical Information Processing II, (9 October 1998); doi: 10.1117/12.326778
Show Author Affiliations
Michael J. O'Callaghan, Displaytech, Inc. (United States)
David J. Ward, Black Forest Engineering (United States)
Stephen H. Perlmutter, Displaytech, Inc. (United States)
Lianhua Ji, Displaytech, Inc. (United States)
Christopher M. Walker, Displaytech, Inc. (United States)

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

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