Optical A/D Converters And Application To Digital Multiplication By Analog Convolution

Alastair D. McAulay

doi:10.1117/12.942059

25 November 1987 Optical A/D Converters And Application To Digital Multiplication By Analog Convolution

Alastair D. McAulay

Proceedings Volume 0827, Real-Time Signal Processing X; (1987) https://doi.org/10.1117/12.942059
Event: 31st Annual Technical Symposium on Optical and Optoelectronic Applied Sciences and Engineering, 1987, San Diego, CA, United States

Abstract

The need for high performance A/D converters, the advantages of optics, and current approaches to A/D conversion are reviewed. A novel method is proposed that uses comparators, optical logic, and a table look-up to provide optical digital output from an optical analog input. The advantage of the new method is the ability to produce any digital code, optical input/output, and longer word lengths at high speed. Implementations of the optical logic are proposed that use 1-D SLM devices under development. The optical A/D could make digital multiplication by analog convolution competitive with electronic systems.

Citation Download Citation

Alastair D. McAulay "Optical A/D Converters And Application To Digital Multiplication By Analog Convolution", Proc. SPIE 0827, Real-Time Signal Processing X, (25 November 1987); https://doi.org/10.1117/12.942059

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