Ultrafast All-Optical Implementation of a Leaky Integrate-and-Fire Neuron

Optics Express

Editor: C. Martijn de Sterke
Vol. 19, Iss. 3 — Jan. 31, 2011
pp: 2133–2147

Ultrafast All-Optical Implementation of a Leaky Integrate-and-Fire Neuron

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Optics Express, Vol. 19, Issue 3, pp. 2133-2147 (2011)

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Abstract

In this paper, we demonstrate for the first time an ultrafast fully functional photonic spiking neuron. Our experimental setup constitutes a complete all-optical implementation of a leaky integrate-and-fire neuron, a computational primitive that provides a basis for general purpose analog optical computation. Unlike purely analog computational models, spiking operation eliminates noise accumulation and results in robust and efficient processing. Operating at gigahertz speed, which corresponds to at least 10⁸ speed-up compared with biological neurons, the demonstrated neuron provides all functionality required by the spiking neuron model. The two demonstrated prototypes and a demonstrated feedback operation mode prove the feasibility and stability of our approach and show the obtained performance characteristics.

OCIS Codes
(190.4360) Nonlinear optics : Nonlinear optics, devices
(200.4260) Optics in computing : Neural networks
(200.4700) Optics in computing : Optical neural systems

ToC Category:
Optics in Computing

History
Original Manuscript: November 3, 2010
Manuscript Accepted: January 10, 2011
Published: January 20, 2011

Citation
, "Ultrafast All-Optical Implementation of a Leaky Integrate-and-Fire Neuron," Opt. Express 19, 2133-2147 (2011)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-19-3-2133

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