Experimental evidence of stochastic resonance in an excitable optical system
Anno: 2002
Autori: Marino F., Giudici M., Barland S., Balle S.
Affiliazione autori: 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.
Giornale/Rivista: PHYSICAL REVIEW LETTERS
Volume: 88 (4) Da Pagina: 40601-1 A: 40601-4
Parole chiavi: Semiconductor-lasers; Coherence Resonance; Noise; Fluctuations; Feedback; WavesDOI: 10.1103/PhysRevLett.88.040601Citazioni: 67dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2025-05-18Riferimenti tratti da Isi Web of Knowledge: (solo abbonati)
