Numerical study of laser synapse connecting Hindmarsh–Rose neurons
Departamento de Ciencias Exactas y Tecnología, Centro Universitario de los Lagos, Universidad de Guadalajara, Enrique Díaz de León 1144, Colonia Paseos de la Montaña, Lagos de Moreno, Jalisco, Mexico
2 Center for Biomedical Technology, Universidad Politécnica de Madrid, Campus Montegancedo, 28223, Pozuelo de Alarcón, Madrid, Spain
3 Innopolis University, Universitetskaya Str. 1, 420500, Innopolis, Russia
Accepted: 19 November 2021
Published online: 8 January 2022
We study numerically the dynamics of a system composed of two artificial neurons connected via an erbium-doped fiber laser. In our system, the laser acts as an optical synapse whose dynamics is controlled with a signal generated by a presynaptic Hindmarsh–Rose neuron, while the laser output drives a postsynaptic Hindmarsh–Rose neuron. Depending on the laser parameter, the postsynaptic neuron can be turned to different dynamical regimes including silence, tonic spikes, bursts with different number of spikes, and chaos.
© The Author(s), under exclusive licence to EDP Sciences, Springer-Verlag GmbH Germany, part of Springer Nature 2022