Implementation and assessment of advanced analog optical vector-matrix processor

Charles K. Gary

doi:10.1117/12.187291

29 September 1994 Implementation and assessment of advanced analog optical vector-matrix processor

Charles K. Gary

Proceedings Volume 2297, Photonics for Processors, Neural Networks, and Memories II; (1994) https://doi.org/10.1117/12.187291
Event: SPIE's 1994 International Symposium on Optics, Imaging, and Instrumentation, 1994, San Diego, CA, United States

Abstract

In this paper, we present the first analysis of the accuracy of both addition and multiplication on a multichannel optical matrix processor. We performed our analysis on an analog optical vector-matrix processor capable of performing 120 M operations per second with an 8-element input vector, 8 X 8 matrix and 8-element output. We examine the accuracy with which numbers are represented for both the acoustooptic vector input and the liquid crystal matrix input, the accuracy of multiplication on a single channel, the accuracy of addition on two channels as well as the accuracy of multiplication and addition on two channels. From this analysis, we can conclude that while vector input numbers are represented with 7.7 bit accuracy, the results of two-channel multiplication and addition are only accurate to within 1.3% or 6.3 bits.

Citation Download Citation

Charles K. Gary "Implementation and assessment of advanced analog optical vector-matrix processor", Proc. SPIE 2297, Photonics for Processors, Neural Networks, and Memories II, (29 September 1994); https://doi.org/10.1117/12.187291

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