Holographic Associative Memory Employing Phase Conjugation

B. H. Soffer; E. Marom; Y. Owechko; G. Dunning

doi:10.1117/12.936473

19 December 1986 Holographic Associative Memory Employing Phase Conjugation

B. H. Soffer, E. Marom, Y. Owechko, G. Dunning

Proceedings Volume 0684, Liquid Crystals and Spatial Light Modulator Materials; (1986) https://doi.org/10.1117/12.936473
Event: 30th Annual Technical Symposium, 1986, San Diego, United States

Abstract

The principle of information retrieval by association has been suggested as a basis for parallel computing and as the process by which human memory functions.1 Various associative processors have been proposed that use electronic or optical means. Optical schemes,2-7 in particular, those based on holographic principles,8'8' are well suited to associative processing because of their high parallelism and information throughput. Previous workers8 demonstrated that holographically stored images can be recalled by using relatively complicated reference images but did not utilize nonlinear feedback to reduce the large cross talk that results when multiple objects are stored and a partial or distorted input is used for retrieval. These earlier approaches were limited in their ability to reconstruct the output object faithfully from a partial input.

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B. H. Soffer, E. Marom, Y. Owechko, and G. Dunning "Holographic Associative Memory Employing Phase Conjugation", Proc. SPIE 0684, Liquid Crystals and Spatial Light Modulator Materials, (19 December 1986); https://doi.org/10.1117/12.936473

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