Optical implementations of the alternating projection neural network

Alan T. Smith; John F. Walkup

doi:10.1117/12.55972

1 October 1991 Optical implementations of the alternating projection neural network

Alan T. Smith, John F. Walkup

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Optical Engineering, Vol. 30, Issue 10, (October 1991). https://doi.org/10.1117/12.55972

Abstract

The results of two electro-optical implementations of the alternating projection neural network (APNN) are presented. Both configurations use optical matrix-vector multipliers with electronic feedback, but different spatial light modulators are employed. The first implementation is passive, employing a photographic transparency that intensity-modulates the incident incoherent light. In the second implementation, two spatial light modulators actively modulate the light, permitting real-time updating of the interconnection matrix elements. To the authors' knowledge, the implementations described are the first of the APNN.

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Alan T. Smith and John F. Walkup "Optical implementations of the alternating projection neural network," Optical Engineering 30(10), (1 October 1991). https://doi.org/10.1117/12.55972

Published: 1 October 1991

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