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Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editor: Gregory W. Faris
  • Vol. 2, Iss. 8 — Aug. 10, 2007

Tunable vertical-cavity surface-emitting laser with feedback to implement a pulsed neural model. 1. Principles and experimental demonstration

Alexandre R. S. Romariz and Kelvin H. Wagner  »View Author Affiliations


Applied Optics, Vol. 46, Issue 21, pp. 4736-4745 (2007)
http://dx.doi.org/10.1364/AO.46.004736


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Abstract

An optoelectronic implementation of a modified FitzHugh–Nagumo neuron model is proposed, analyzed, and experimentally demonstrated. The setup uses linear optics and linear electronics for implementing an optical wavelength-domain nonlinearity. The system attains instability through a bifurcation mechanism present in a class of neuron models, a fact that is shown analytically. The implementation exhibits basic features of neural dynamics including threshold, production of short pulses (or spikes), and refractoriness.

© 2007 Optical Society of America

OCIS Codes
(200.4260) Optics in computing : Neural networks
(250.7260) Optoelectronics : Vertical cavity surface emitting lasers

ToC Category:
Optoelectronics

History
Original Manuscript: April 25, 2006
Revised Manuscript: February 21, 2007
Manuscript Accepted: April 11, 2007
Published: July 6, 2007

Virtual Issues
Vol. 2, Iss. 8 Virtual Journal for Biomedical Optics

Citation
Alexandre R. S. Romariz and Kelvin H. Wagner, "Tunable vertical-cavity surface-emitting laser with feedback to implement a pulsed neural model. 1. Principles and experimental demonstration," Appl. Opt. 46, 4736-4745 (2007)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=ao-46-21-4736


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