Optical learning network with amplitude detection

Chau-Jern Cheng; Ken Yuh Hsu; Tai Chiung Hsieh; Pochi Yeh

doi:10.1117/12.147870

12 July 1993 Optical learning network with amplitude detection

Chau-Jern Cheng, Ken Yuh Hsu, Tai Chiung Hsieh, Pochi Yeh

Proceedings Volume 1806, Optical Computing; (1993) https://doi.org/10.1117/12.147870
Event: Topical Meeting on Optical Computing, 1992, Minsk, Belarus

Abstract

An optical learning network using photorefractive holograms with grating amplitude detection is presented and demonstrated. The Stoke's principle for light is used to realize both bipolar weight changes and bipolar activities for perceptron learning. The bipolar detection is achieved by using a double Mach-Zehnder interferometer and an electronic subtractor at the output port. Experimental results show that a zero or near to zero threshold value, the network can be trained to dichotomize the input patterns.

Citation Download Citation

Chau-Jern Cheng, Ken Yuh Hsu, Tai Chiung Hsieh, and Pochi Yeh "Optical learning network with amplitude detection", Proc. SPIE 1806, Optical Computing, (12 July 1993); https://doi.org/10.1117/12.147870

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