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Sensors 2013, 13(12), 17322-17331; doi:10.3390/s131217322
Article

Experimental Implementation of a Biometric Laser Synaptic Sensor

1,2,* , 3
, 3
, 3
, 3
 and 4,5
1 Centro de Investigaciones en Optica, Loma del Bosque 115, Lomas del Campestre, Leon 37150, Guanajuato, Mexico 2 Centre for Biomedical Technology, Technical University of Madrid, Campus Montegancedo,Pozuelo de Alarcon 28223, Madrid, Spain 3 Centro Universitario de Los Lagos, Universidad de Guadalajara, Enrique Díaz de León 1144, Paseo de la Montaña, Lagos de Moreno, Jalisco 47460, Mexico 4 Institute of Applied Physics of Russian Academy of Science, 46 Uljanov Str., Nizhny Novgorod 603950, Russia 5 Lobachevsky State University of Nizhni Novgorod, 23 Gagarin Ave.,Nizhny Novgorod 603950, Russia
* Author to whom correspondence should be addressed.
Received: 26 October 2013 / Revised: 27 November 2013 / Accepted: 3 December 2013 / Published: 16 December 2013
(This article belongs to the Section Physical Sensors)
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Abstract

We fabricate a biometric laser fiber synaptic sensor to transmit information from one neuron cell to the other by an optical way. The optical synapse is constructed on the base of an erbium-doped fiber laser, whose pumped diode current is driven by a pre-synaptic FitzHugh–Nagumo electronic neuron, and the laser output controls a post-synaptic FitzHugh–Nagumo electronic neuron. The implemented laser synapse displays very rich dynamics, including fixed points, periodic orbits with different frequency-locking ratios and chaos. These regimes can be beneficial for efficient biorobotics, where behavioral flexibility subserved by synaptic connectivity is a challenge.
Keywords: fiber laser; electronic circuit; neuron; synapse; artificial intelligence; neuroengineering; biorobotics; pump modulation fiber laser; electronic circuit; neuron; synapse; artificial intelligence; neuroengineering; biorobotics; pump modulation
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Pisarchik, A.N.; Sevilla-Escoboza, R.; Jaimes-Reátegui, R.; Huerta-Cuellar, G.; García-Lopez, J.H.; Kazantsev, V.B. Experimental Implementation of a Biometric Laser Synaptic Sensor. Sensors 2013, 13, 17322-17331.

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