Title :
An optical implementation of adaptive resonance utilizing phase conjugation
Author :
Wunsch, Donald C. ; Caudell, Thomas P. ; Morris, David J. ; Falk, R. Aaron
Author_Institution :
Boeing Co., Seattle, WA, USA
Abstract :
A novel adaptive resonance theory (ART) device has been conceived that is fully optical in the input-output processing path. This device is based on holographic information processing in a phase-conjugating crystal. This sets up an associative pattern retrieval in a resonating loop utilizing angle-multiplexed reference beams for pattern classification. A reset mechanism is used to reject any given beam, allowing an ART search strategy. The design is similar to that of an existing nonlearning optical associative memory, but is does allow learning and makes use of information the other device discards. This new device is expected to offer higher information storage density that alternative ART implementations
Keywords :
content-addressable storage; holographic storage; optical neural nets; optical phase conjugation; ART search strategy; adaptive resonance; adaptive resonance theory; angle-multiplexed reference beams; associative pattern retrieval; holographic information processing; input-output processing path; optical associative memory; pattern classification; phase conjugation; phase-conjugating crystal; reset mechanism; resonating loop; Adaptive optics; Associative memory; Holographic optical components; Holography; Information processing; Optical design; Optical devices; Pattern classification; Resonance; Subspace constraints;
Conference_Titel :
Neural Networks, 1992. IJCNN., International Joint Conference on
Conference_Location :
Baltimore, MD
Print_ISBN :
0-7803-0559-0
DOI :
10.1109/IJCNN.1992.287216
