Artificial optoelectronic spiking neurons with laser-coupled resonant tunnelling diode systems

Hejda, Matej and Malysheva, Ekaterina and Al-Taai, Qusay Raghib Ali and Wasige, Edward and Dolores-Calzadilla, Victor and Figueiredo, Jose and Romeira, Bruno and Hurtado, Antonio (2022) Artificial optoelectronic spiking neurons with laser-coupled resonant tunnelling diode systems. 2022 IEEE Photonics Conference (IPC). (https://doi.org/10.1109/ipc53466.2022.9975655)

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Abstract

We report a spiking artificial optoelectronic neuron based on a resonant tunnelling diode (RTD) coupled to a photodetector (receiver) and a vertical cavity surface emitting laser (VCSEL, transmitter). We experimentally realize this O/E/O system, and demonstrate optical spiking with a well-defined, adjustable excitability threshold.