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Proceedings Paper

A Polarization Based Optical Connectionist Machine
Author(s): Mike Kranzdorf; Kristina M. Johnson; Lise Cotter; Lin Zhang; B.Jack Bigner
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Paper Abstract

Simulations of massively parallel connectionist systems are very time consuming on serial computers . Vector-matrix multiplications, which are a common calculation of many popular connectionist architectures, require 0(n2) operations on serial machines. A simple optical architecture can perform this calculation in nearly constant time, neglecting the machine loading time. The parallelism in such optical designs makes them attractive for implementation of connectionist models. We have demonstrated an optoelectronic connectionist module with modifiable inputs and weight matrices that performs associative memory operations. Low cost commercial liquid crystal television sets are used to encode unit activities as intensity of linearly polarized light, and signed multiplication as rotation of this light. Integrated computer control will allow the extension to many connectionist models.

Paper Details

Date Published: 8 February 1988
PDF: 10 pages
Proc. SPIE 0963, Optical Computing '88, (8 February 1988); doi: 10.1117/12.947931
Show Author Affiliations
Mike Kranzdorf, University of Colorado (United States)
Kristina M. Johnson, University of Colorado (United States)
Lise Cotter, University of Colorado (United States)
Lin Zhang, University of Colorado (United States)
B.Jack Bigner, University of Colorado (United States)

Published in SPIE Proceedings Vol. 0963:
Optical Computing '88
Pierre H. Chavel; Joseph W. Goodman; Gerard Roblin, Editor(s)

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