Abstract

An optical inhibitory neural network with lateral interconnections between units is demonstrated. Separate device responses, inversely proportional and sigmoid, are utilized for inhibitory and excitatory units, respectively. Preliminary experimental results for an edge enhancement illustrate the versatility of the network. The inverted semilinear transfer function for a microchannel spatial light modulator combined with a polarizer produces the inhibitory signal optically without performing optical signal subtraction.

© 1989 Optical Society of America

All-optical neural network with inhibitory neurons

I. Shariv and A. A. Friesem
Opt. Lett. 14(10) 485-487 (1989)

Lateral inhibitory action in an optical neural network using an internal-light-coupled optical device array

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All-optical error-signal generation for backpropagation learning in optical multilayer neural networks

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