Experimental evidence of stochastic resonance in an excitable optical system
Year: 2002
Authors: Marino F., Giudici M., Barland S., Balle S.
Autors Affiliation: B, CSIC, Inst Mediterraneo Estudios Avanzados, Dept Fis Interdisciplinar, E-07190 Esporles, Spain; UNSA, Inst Nonlineaire Nice, CNRS, UMR 6618, F-06560 Valbonne, France.
Abstract: Experimental evidence of stochastic resonance in an excitable optical system is reported. We apply a sinusoidal forcing to the system and, for a finite external noise level, we find a frequency for which the excitable pulsing occurs periodically at the frequency imposed by the modulation. This resonant frequency matches the inverse of the average escape time of the stochastically driven system (i.e., without forcing). The same resonance is found by varying the noise level for fixed forcing frequencies. We discuss different indicators in order to describe quantitatively the degree of resonance.
Journal/Review: PHYSICAL REVIEW LETTERS
Volume: 88 (4) Pages from: 40601-1 to: 40601-4
KeyWords: Semiconductor-lasers; Coherence Resonance; Noise; Fluctuations; Feedback; WavesDOI: 10.1103/PhysRevLett.88.040601Citations: 67data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2024-10-20References taken from IsiWeb of Knowledge: (subscribers only)