Four-quadrant optical matrix vector multiplication machine as a neural network processor

Shai Abramson; D. Saad; Emanuel Marom; Naim Konforti

doi:10.1117/12.151090

13 August 1993 Four-quadrant optical matrix vector multiplication machine as a neural network processor

Shai Abramson, D. Saad, Emanuel Marom, Naim Konforti

Proceedings Volume 1972, 8th Meeting on Optical Engineering in Israel: Optoelectronics and Applications in Industry and Medicine; (1993) https://doi.org/10.1117/12.151090
Event: 8th Meeting in Israel on Optical Engineering, 1992, Tel Aviv, Israel

Abstract

Optical processors for neural networks are primarily fast matrix-vector multiplication machines that can potentially compete with serial computers owing to their parallelism and their ability to facilitate densely connected networks. However, in most proposed systems the multiplication supports only two quadrants and is thus unable to provide bipolar neuron outputs for increasing network capabilities and learning rate. We propose and demonstrate an opto-electronic four quadrant matrix-vector multiplier that can be used for feedforward neural networks recall and learning. Experimental results obtained with common commercial components demonstrate a novel, useful, and reliable approach for four quadrant matrix-vector multiplication in general and for feedforward neural network training and recall in particular.

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Shai Abramson, D. Saad, Emanuel Marom, and Naim Konforti "Four-quadrant optical matrix vector multiplication machine as a neural network processor", Proc. SPIE 1972, 8th Meeting on Optical Engineering in Israel: Optoelectronics and Applications in Industry and Medicine, (13 August 1993); https://doi.org/10.1117/12.151090

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KEYWORDS

LCDs

Neurons

Neural networks

Sensors

Computing systems

Optical engineering

Polarization

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