Abstract

As a higher-order associative memory of a neural network, the quadratic associative memory is implemented holographically by using the polarization-encoding process. The use of polarization encoding to represent sign in the quadratic associative memory tensor is made by twisted nematic liquid-crystal light modulators. Experimental results of retrieving the stored objects from an incomplete input are presented.

© 1990 Optical Society of America

Optoelectronic chip implementation of a quadratic associative memory

A. Von Lehmen, E. G. Paek, L. C. Carrion, J. S. Patel, and A. Marrakchi
Opt. Lett. 15(5) 279-281 (1990)

Properties of holographic associative memory prepared by the polarization encoding process

Seok Ho Song and Sang Soo Lee
Appl. Opt. 27(15) 3149-3154 (1988)

Optical implementation of quadratic associative memory with outer-product storage

Ju-Seog Jang, Sang-Yung Shin, and Soo-Young Lee
Opt. Lett. 13(8) 693-695 (1988)

Optical implementation of the Hopfield model for two-dimensional associative memory

Ju-Seog Jang, Su-Won Jung, Soo-Young Lee, and Sang-Yung Shin
Opt. Lett. 13(3) 248-250 (1988)

Optical implementation of quadratic associative memory by use of persistent spectral hole-burning media

Olavi Ollikainen
Appl. Opt. 32(11) 1943-1947 (1993)