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arXiv · 1409.7030

SIMPEL: Circuit model for photonic spike processing laser neurons

Bhavin J. Shastri·Mitchell A. Nahmias·Alexander N. Tait·Ben Wu·Paul R. Prucnal
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Abstract

We propose an equivalent circuit model for photonic spike processing laser neurons with an embedded saturable absorber---a simulation model for photonic excitable lasers (SIMPEL). We show that by mapping the laser neuron rate equations into a circuit model, SPICE analysis can be used as an efficient and accurate engine for numerical calculations, capable of generalization to a variety of different laser neuron types found in literature. The development of this model parallels the Hodgkin--Huxley model of neuron biophysics, a circuit framework which brought efficiency, modularity, and generalizability to the study of neural dynamics. We employ the model to study various signal-processing effects such as excitability with excitatory and inhibitory pulses, binary all-or-nothing response, and bistable dynamics.

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Bhavin J. Shastri, Mitchell A. Nahmias, Alexander N. Tait, Ben Wu, Paul R. Prucnal. 2014-09-24. SIMPEL: Circuit model for photonic spike processing laser neurons. https://doi.org/10.1364/oe.23.008029

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