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Virtual Journal for Biomedical Optics

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. 2. High-frequency effects and optical coupling

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


Applied Optics, Vol. 46, Issue 21, pp. 4746-4753 (2007)
http://dx.doi.org/10.1364/AO.46.004746


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Abstract

The operation of an optoelectronic dynamic neural model implementation is extended to higher frequencies. A simplified model of thermal effects in vertical-cavity surface-emitting lasers correctly predicts the qualitative changes in the nonlinear mapping implementation with frequency. Experiments and simulations show the expected resonance properties of this model neuron, along with the possibility of other dynamic effects in addition to the ones observed in the original FitzHugh–Nagumo equations. Results of optical coupling between two similar pulsing artificial neurons are also presented.

© 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. 2. High-frequency effects and optical coupling," Appl. Opt. 46, 4746-4753 (2007)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=ao-46-21-4746


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References

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