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Published May 1, 1988 | public
Journal Article Open

Adaptive optical networks using photorefractive crystals


The capabilities of photorefractive crystals as media for holographic interconnections in neural networks are examined. Limitations on the density of interconnections and the number of holographic associations which can be stored in photorefractive crystals are derived. Optical architectures for implementing various neural schemes are described. Experimental results are presented for one of these architectures.

Additional Information

© Copyright 2006 Optical Society of America Received 24 July 1987. The authors thank Xiang Guang Gu, Jeff Yu, and Hyuk Lee for many useful discussions relevant to the topics covered in this paper. This research is supported by the Defense Advanced Research Projects Agency, the Air Force Office of Scientific Research, and the Army Research Office. David Brady acknowledges the support of the Office of Naval Research through the ONR/ASEE fellowship program. Portions of this paper were presented at the IEEE International Conference on Neural Networks in San Diego, 21-24 June 1987.


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