Use of magneto-optic spatial light modulators and linear detector arrays in inner-product associative memories

John R. Goff

doi:10.1117/12.49653

11 November 1991 Use of magneto-optic spatial light modulators and linear detector arrays in inner-product associative memories

John R. Goff

Author Affiliations +

Proceedings Volume 1558, Wave Propagation and Scattering in Varied Media II; (1991) https://doi.org/10.1117/12.49653
Event: San Diego, '91, 1991, San Diego, CA, United States

Abstract

The concept and implementation of an inner-product associative memory is here motivated largely by recognizing the excellent suitability of modern optical devices (such as magneto-optic spatial light modulators (SLMs) and self-scanning detectors) for realizing matrix algebra operations. Binary input vectors and reference vectors are loaded into SLM devices, and a correlation is produced in accordance with the effects on polarization and phase, including the summing function provided by a lens. In this simple way, the first half of an inner-product associative memory is constructed, which should then be followed by a nonlinearity at the correlation plane (as opposed to the output plane). A photorefractive element allows the associative memory system to be completed; this element is used in an unconventional manner.

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John R. Goff "Use of magneto-optic spatial light modulators and linear detector arrays in inner-product associative memories", Proc. SPIE 1558, Wave Propagation and Scattering in Varied Media II, (11 November 1991); https://doi.org/10.1117/12.49653

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