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Journal Articles Chaos: An Interdisciplinary Journal of Nonlinear Science Year : 2023

Impact of filtering on photonic time-delay reservoir computing

G. Danilenko
A. Kovalev
E. Viktorov
A. Locquet
D. Citrin
D. Rontani

Abstract

We analyze the modification of the computational properties of a time-delay photonic reservoir computer with a change in its feedback bandwidth. For a reservoir computing configuration based on a semiconductor laser subject to filtered optoelectronic feedback, we demonstrate that bandwidth selection can lead to a flat-topped eigenvalue spectrum for which a large number of system frequencies are weakly damped as a result of the attenuation of modulational instability by feedback filtering. This spectral configuration allows for the optimization of the reservoir in terms of its memory capacity, while its computational ability appears to be only weakly affected by the characteristics of the filter.
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Dates and versions

hal-03943772 , version 1 (17-01-2023)

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G. Danilenko, A. Kovalev, E. Viktorov, A. Locquet, D. Citrin, et al.. Impact of filtering on photonic time-delay reservoir computing. Chaos: An Interdisciplinary Journal of Nonlinear Science, 2023, 33 (1), pp.013116. ⟨10.1063/5.0127661⟩. ⟨hal-03943772⟩
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