Title :
Nonlinear holographic associative memories
Author_Institution :
Hughes Res. Lab., Malibu, CA, USA
fDate :
3/1/1989 12:00:00 AM
Abstract :
Recent progress in the field of holographic optical associative memories is reviewed. The addition of nonlinear optical feedback to holographic memories using phase conjugation techniques has resulted in a new class of nonlinear holographic associative memories. These systems perform associations between input patterns and stored patterns as in classical holography. Unlike classical holography, however, external nonlinearities are used to make decisions and select between competing alternatives, perform error corrections, and increase storage capacity. Such optical associative processors may have applications in future implementations of optical neural networks
Keywords :
content-addressable storage; feedback; holographic storage; optical phase conjugation; external nonlinearities; holographic optical associative memories; input patterns; nonlinear optical feedback; optical associative processors; optical neural networks; phase conjugation techniques; stored patterns; Associative memory; Biological neural networks; Biomedical optical imaging; Holographic optical components; Holography; Neurons; Nonlinear optics; Optical computing; Optical feedback; Optical fiber networks;
Journal_Title :
Quantum Electronics, IEEE Journal of
