Phys. Rev. E 70, 062101 (2004) [4 pages]Experimental and theoretical study of the noise-induced gain degradation in vibrational resonanceReceived 4 May 2004; published 22 December 2004 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. © 2004 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevE.70.062101
DOI:
10.1103/PhysRevE.70.062101
PACS:
05.40.Ca, 42.65.Pc
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