Phys. Rev. E 70, 062101 (2004) - Experimental and theoretical study of the noise-induced gain degradation in vibrational resonance

Experimental and theoretical study of the noise-induced gain degradation in vibrational resonance

V. N. Chizhevsky and Giovanni Giacomelli

Phys. Rev. E 70, 062101 – Published 22 December 2004

Abstract

We present the results of theoretical and experimental investigations of the effect of additive noise on vibrational resonance in a bistable system driven by two periodic forces with very different frequencies. The phenomenon shows up as a parametric amplification of the low-frequency signal depending on the amplitude of high-frequency modulation. A scaling law for noise-induced decreasing of the gain factor, found theoretically, is compared with the experimental results obtained in a bistable vertical cavity surface emitting laser.

Received 4 May 2004

DOI:https://doi.org/10.1103/PhysRevE.70.062101

©2004 American Physical Society

Authors & Affiliations

V. N. Chizhevsky^1,2,* and Giovanni Giacomelli^1,3

¹Istituto Nazionale di Ottica Applicata, Largo E. Fermi 6, 50125 Firenze, Italy
²B.I. Stepanov Institute of Physics, NASB, 220072 Minsk, Belarus
³Istituto Nazionale di Fisica della Materia, unita di Firenze, Firenze, Italy

^*Electronic address: vnc@dragon.bas-net.by

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Issue

Vol. 70, Iss. 6 — December 2004

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