Single-rail translation-invariant optical associative memory

Abstract

A single-rail optical memory is proposed. The associated memory is based on a double-correlator architecture coupled with an optoelectronic thresholding feedback module. The latter permits complete translation invariance of the neural network. The system requires only a single 35-mW He–Ne laser. The associative memory is recorded with the help of computer-generated holograms. The global iterative coding [Opt. Eng. 32, 2216 (1993)] technique provides good performance with high diffraction efficiency.

© 1995 Optical Society of America

Nearly optimal correlations for shift-invariant associative memories

Jehad Khoury, Peter D. Gianino, and Charles L. Woods
Appl. Opt. 34(20) 3971-3980 (1995)

Multilayer associative memory and its hybrid optical implementation

Guowen Lu, Mingzhe Lu, and Francis T. S. Yu
Appl. Opt. 34(23) 5109-5117 (1995)

Optical associative memory with bipolar edge-enhanced learning that uses a binary spatial light modulator and a BaTiO₃ crystal

Xu-Ming Wang, Trevor J. Hall, and Jian Wang
Appl. Opt. 34(32) 7565-7572 (1995)

Shift-invariant interpattern association neural network

Chii-Maw Uang, Shizhuo Yin, P. Andres, Wade Reeser, and Francis T. S. Yu
Appl. Opt. 33(11) 2147-2151 (1994)

Optical implementation of a second-order translation-invariant network algorithm

Paul Horan, Andrew Jennings, Brian Kelly, and John Hegarty
Appl. Opt. 32(8) 1311-1321 (1993)