Optical implementation of a single-layer finite impulse response neural network

Paulo E. X. Silveira; G. S. Pati; Kelvin H. Wagner

doi:10.1117/12.386885

24 May 2000 Optical implementation of a single-layer finite impulse response neural network

Paulo E. X. Silveira, G. S. Pati, Kelvin H. Wagner

Proceedings Volume 4089, Optics in Computing 2000; (2000) https://doi.org/10.1117/12.386885
Event: 2000 International Topical Meeting on Optics in Computing (OC2000), 2000, Quebec City, Canada

Abstract

This paper demonstrates a space integrating optical implementation of a single-layer FIRNN. A scrolling spatial light modulator is used for representing the spatio-temporal input plane, while the weights are implemented by the adaptive grating formation in a photorefractive crystal. Differential heterodyning is used for low-noise bipolar output detection and an active stabilization technique using a lock-in amplifier and a piezo-electric actuator is adopted for long term interferometric stability. Simulations and initial experimental results for adaptive sonar broadband beamforming are presented.

Citation Download Citation

Paulo E. X. Silveira, G. S. Pati, and Kelvin H. Wagner "Optical implementation of a single-layer finite impulse response neural network", Proc. SPIE 4089, Optics in Computing 2000, (24 May 2000); https://doi.org/10.1117/12.386885

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