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Optica Publishing Group
  • Chinese Optics Letters
  • Vol. 8,
  • Issue 12,
  • pp. 1160-1162
  • (2010)

Stochastic resonance in an optical bistable system subjected to cross-correlated additive white noise and multiplicative colored noise

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Abstract

The stochastic resonance (SR) of an optical bistable system with cross-correlated additive white and multiplicative colored noises and periodic signal is studied using the unified colored noise approximation and the theory of signal-to-noise ratio (SNR). Results show that cross-correlation intensity \lambda enforces the SR of the system. The position of the peak on the SNR-\tau curves moves to the right direction along with the increase of \lambda (\tau is the self-correlation time of the multiplicative colored noise). We find the SR phenomenon in the SNR-D and SNR-Q curves (D and Q are the intensities of the additive and multiplicative noises, respectively), but not in the SNR-\lambda curves.

© 2010 Chinese Optics Letters

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