Open AccessAsymmetrical performance of a laser-based reservoir computer with optoelectronic feedback
Author(s) -
Pavel Dmitriev,
Anton V. Kovalev,
Alexandre Locquet,
Damien Rontani,
Evgeny A. Viktorov
Publication year - 2020
Publication title -
optics letters/optics index
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.524
H-Index - 272
eISSN - 1071-2763
pISSN - 0146-9592
DOI - 10.1364/ol.405177
Subject(s) - semiconductor laser theory , instability , bifurcation , negative feedback , asymmetry , photonics , computer science , laser , optics , physics , nonlinear system , mechanics , quantum mechanics , voltage
We numerically quantify the performance of a photonic reservoir computer based on a semiconductor laser subject to high-pass filtered optoelectronic feedback. We assess its memory capacity, computational ability, and performance in solving a multi-step prediction task. By analyzing the complex bifurcation landscape of the corresponding delay-differential equation model, we observe that optimal performance occurs at the edge of instability, at the onset of periodic regimes, and unveil a parity asymmetry in the performance with a slight advantage for positive over negative feedback.