Experimental evidence of binary aperiodic stochastic resonance

Year: 2000

Authors: Barbay S., Giacomelli G., Marin F.

Autors Affiliation: Istituto Nazionale di Ottica Applicata, Largo E. Fermi 6, 50125 Firenze, Italy; Dipartimento di Fisica, Università di Firenze and European Laboratory for Nonlinear Spectroscopy (LENS), Largo E. Fermi 2, 50125 Firenze, Italy;
Istituto Nazionale per la Fisica della Materia (INFM), Unità di Firenze, Firenze, Italy

Abstract: A novel kind of aperiodic stochastic resonance is experimentally studied in a vertical cavity surface emitting laser We characterize the response of the system to a random, binary signal as a function of an applied external noise. A maximum in the input-output correlation is found for a nonzero added noise. We present analytic results with a good agreement with the measurements. We also discuss the physical meaning of the phenomenon using simple arguments, and we compare it to stochastic resonance.

Journal/Review: PHYSICAL REVIEW LETTERS

Volume: 85 (22)      Pages from: 4652  to: 4655

KeyWords: Noise; Systems
DOI: 10.1103/PhysRevLett.85.4652

Citations: 42
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