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Controlled inhibition of spiking dynamics in VCSELs for neuromorphic photonics : theory and experiments

Robertson, Joshua and Deng, Tao and Javaloyes, Julien and Hurtado, Antonio (2017) Controlled inhibition of spiking dynamics in VCSELs for neuromorphic photonics : theory and experiments. Optics Letters, 42 (7). ISSN 0146-9592

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We report experimentally and on theory on the controllable inhibition of spiking regimes in a 1300 nm wavelength Vertical Cavity Surface Emitting Laser (VCSEL). Reproducible suppression of spiking dynamics is demonstrated at fast operation speeds (up to sub-ns rates) and with total control on the temporal duration of the spiking inhibition windows. This work opens new paths towards photonic inhibitory neuronal model system for use in future neuromorphic photonic information processing modules and which are able to operate at speeds up to 8 orders of magnitude faster than biological neurons.