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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 44, Iss. 19 — Jul. 1, 2005
  • pp: 4053–4059

Frequency-multiplexed logic circuit based on a coherent optical neural network

Sotaro Kawata and Akira Hirose  »View Author Affiliations


Applied Optics, Vol. 44, Issue 19, pp. 4053-4059 (2005)
http://dx.doi.org/10.1364/AO.44.004053


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Abstract

We propose an adaptive logic circuit whose function can be controlled by optical carrier frequency modulation. The circuit learns the desired functions by adjusting the delay time at a spatial light modulator with a complex-valued Hebbian learning rule. After the learning, the circuit can switch its function all at once. A high degree of mechanical stability is achieved by spatial phase-difference coding. Two orthogonal phase components are detected in parallel spatially. Experiments demonstrate that the system works as an and circuit at a certain frequency and as an xor at another. The proposal will enhance the design of optical plastic cell architectures.

© 2005 Optical Society of America

OCIS Codes
(060.1810) Fiber optics and optical communications : Buffers, couplers, routers, switches, and multiplexers
(060.2920) Fiber optics and optical communications : Homodyning
(060.5060) Fiber optics and optical communications : Phase modulation
(200.3760) Optics in computing : Logic-based optical processing
(200.4700) Optics in computing : Optical neural systems
(260.3160) Physical optics : Interference

History
Original Manuscript: September 2, 2004
Revised Manuscript: January 7, 2005
Manuscript Accepted: January 12, 2005
Published: July 1, 2005

Citation
Sotaro Kawata and Akira Hirose, "Frequency-multiplexed logic circuit based on a coherent optical neural network," Appl. Opt. 44, 4053-4059 (2005)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-44-19-4053

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