Paper
21 January 1994 Optical neural networks based on photorefractive beam fanning
Bernard H. Soffer, Yuri Owechko
Author Affiliations +
Proceedings Volume 2051, International Conference on Optical Information Processing; (1994) https://doi.org/10.1117/12.166017
Event: Optical Information Processing: International Conference, 1993, St. Petersburg, Russian Federation
Abstract
We describe a hybrid optoelectronic neurocomputer based on photorefractive crystals in which each neural network interconnection and its weight is stored in a set of angularly- and spatially-multiplexed gratings generated by stimulated processes in photorefractive crystals called beam fanning. This approach to holographic storage reduces crosstalk and improves system performance. Successfully implemented neural networks include the Perceptron, Bidirectional Associative Memory, and multi-layer backpropagation networks. Preliminary results are presented.
© (1994) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Bernard H. Soffer and Yuri Owechko "Optical neural networks based on photorefractive beam fanning", Proc. SPIE 2051, International Conference on Optical Information Processing, (21 January 1994); https://doi.org/10.1117/12.166017
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KEYWORDS
Neural networks

Holography

Crystals

Neurons

Laser crystals

Free space optics

Artificial neural networks

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