Journal
OPTICS EXPRESS
Volume 23, Issue 6, Pages 8029-8044Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.23.008029
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Funding
- Banting Postdoctoral Fellowship
- National Science Foundation Graduate Research Fellowship Program
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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 types of laser neurons with saturable absorber 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. (C) 2015 Optical Society of America
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