Computing using pulse collisions in lattices of excitable microlasers

L. Soun, K. Alfaro-Bittner, M.G. Clerc and S. Barbay

Chaos, Solitons & Fractals, 2022, vol. 164, issue C

Abstract: Coupled excitable microlasers have been shown theoretically to sustain saltatory propagation of solitonic-like excitations and hold good promise for fabrication of advanced and integrated photonic processing circuits. By studying a model for evanescently coupled excitable microlaser lattices with integrated saturable absorber, we investigate how pulse interaction can lead to non trivial responses. In particular, we show in a three-port system that depending on the system parameters and geometry, two counter-propagating pulses from two input ports can collide and exit or not in a third port, thus giving rise to the not-linearly separable XOR response function and to universal logic gates.

Keywords: Excitability; Pulse collision; Photonic computing; Logic gates; Coupled microlasers (search for similar items in EconPapers)
Date: 2022
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Persistent link: https://EconPapers.repec.org/RePEc:eee:chsofr:v:164:y:2022:i:c:s0960077922007342

DOI: 10.1016/j.chaos.2022.112537

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