An optical neural computing using FLC
Kozo Maeda, M. Hashi, Takashi Yamazaki, H. Kikkawa, Y. Iimura, Shuichiro Kobayashi · Ferroelectrics · 1993
We constructed a Hopfield-type optical neural computing system that performs the operation of autoassociative memory and pattern recognition as recollection using ferroelectric liquid crystal (FLC) EO devices for a part of the neuron. We succeeded in using this optoelectric system consisting of nine FLC based neurons and black / white photomasks as interconnection weight for simple striped pattern recognition. It takes 1 or 1.5 ms to perform the computation; the dynamics of the computing process is successfully reproduced by a simulation.