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Proceedings Paper

Use of magneto-optic spatial light modulators and linear detector arrays in inner-product associative memories
Author(s): John R. Goff
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Paper 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.

Paper Details

Date Published: 11 November 1991
PDF: 10 pages
Proc. SPIE 1558, Wave Propagation and Scattering in Varied Media II, (11 November 1991); doi: 10.1117/12.49653
Show Author Affiliations
John R. Goff, Harry Diamond Labs. (United States)


Published in SPIE Proceedings Vol. 1558:
Wave Propagation and Scattering in Varied Media II
Vijay K. Varadan, Editor(s)

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