Experimental evidence of van der Pol–Fitzhugh–Nagumo dynamics in semiconductor optical amplifiers

Creators: Barland, Stéphane; Piro, Oreste; Giudici, Massimo; Tredicce, Jorge; Balle, Salvatore

Others:: Institut Non Linéaire de Nice Sophia-Antipolis (INLN) ; Université Nice Sophia Antipolis (1965 - 2019) (UNS) ; COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Centre National de la Recherche Scientifique (CNRS); Institut Mediterrani d'Estudis Avancats (IMEDEA) ; Consejo Superior de Investigaciones Científicas [Madrid] (CSIC)-Universidad de las Islas Baleares (UIB)

Description

Thermo-optical pulsing in semiconductor amplifiers is experimentally shown to correspond to a very common excitable scenario (the van der Pol–Fitzhugh–Nagumo system). Self-sustained oscillations appear in the sequence predicted by this simple dynamical model as we change either the injection level or the bias current. Periodic modulation of these parameters leads to the characteristic phase-locking structure. Furthermore, coherence resonance is observed when external noise is added to the system.

Abstract

6 pages

Experimental evidence of van der Pol–Fitzhugh–Nagumo dynamics in semiconductor optical amplifiers

Description

Abstract

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