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1 August 1990 Optical implementation of neural networks
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Proceedings Volume 1281, Optical Interconnections and Networks; (1990)
Event: The International Congress on Optical Science and Engineering, 1990, The Hague, Netherlands
In this paper, optical neural networks under development in our laboratory are reported, together with several novel devices for building advanced systems. This paper is divided into three parts. At first, neural network models which permit us to use commercially-available binary-operating devices are described, including both the feedback model and the feedforward model. Secondly, a GaAs/A1GaAs optical associative neuro-chip based on the feedback model, in which 32 neurons are implemented in an optical integrated structure, is introduced. Next a three-layered dynamic optical network which can recognize 26 characters of alphabet is described, using a spatial light modulator as the synaptic interconnection device. The emphasis is placed on the unique learning rule using the feed forward model. In the third part, fututre trend of optical neurochips is discussed.
© (1990) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Kazuo Kyuma, Kazumasa Mitsunaga, and Jun Ohta "Optical implementation of neural networks", Proc. SPIE 1281, Optical Interconnections and Networks, (1 August 1990);

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