Coherent lightwave associative memory system that possesses a carrier-frequency-controlled behavior

Sotaro Kawata; Akira Hirose

doi:10.1117/1.1596196

1 September 2003 Coherent lightwave associative memory system that possesses a carrier-frequency-controlled behavior

Sotaro Kawata, Akira Hirose

Optical Engineering, Vol. 42, Issue 9, (September 2003). https://doi.org/10.1117/1.1596196

We propose a coherent lightwave neural network system whose behavior can be controlled by the lightwave carrier frequency. We utilize the dependence of homodyne interference on the lightwave frequency by choosing the optical path lengths of the signal and the reference to be slightly different. The synaptic weights consist both of the optical path difference and variable delay realized by a spatial light modulator. A frequency-dependent learning is performed by a novel complex-valued Hebbian rule associated with the carrier frequency. Experiments demonstrate that the associative memory recalls different complex-amplitude patterns according to the carrier frequency variation successfully.

©(2003) Society of Photo-Optical Instrumentation Engineers (SPIE)

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Sotaro Kawata and Akira Hirose "Coherent lightwave associative memory system that possesses a carrier-frequency-controlled behavior," Optical Engineering 42(9), (1 September 2003). https://doi.org/10.1117/1.1596196

Published: 1 September 2003

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