Journal ArticleDOI
Observation of stochastic resonance in a ring laser.
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TLDR
The first observation of stochastic resonance in an optical device, the bidirectional ring laser, is reported and the addition of injected noise can lead to an improved signal-to-noise ratio.Abstract:
We report the first observation of stochastic resonance in an optical device, the bidirectional ring laser. The experiment exploits a new technique to modulate periodically the asymmetry between the two counter-rotating lasing modes. The measurements verify that the addition of injected noise can lead to an improved signal-to-noise ratio (relative to that observed with no externally injected noise).read more
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Journal ArticleDOI
Multi-Frequency Signal Detection Based on Frequency Exchange and Re-Scaling Stochastic Resonance and Its Application to Weak Fault Diagnosis.
TL;DR: A multi-frequency signal detection method based on Frequency Exchange and Re-scaling Stochastic Resonance (FERSR) that can overcome the limitation of "sampling ratio" which is the ratio of the sampling frequency to the frequency of target signal.
Journal ArticleDOI
Interference of stochastic resonances: splitting of Kramers' rate.
TL;DR: It has been shown that depending on their phase difference the application of these two synchronized signals may lead to a splitting of time averaged Kramers' escape rate and a preferential product distribution in a parallel chemical reaction in the steady state.
Journal ArticleDOI
Impact of the depth of the wells and multifractal analysis on stochastic resonance in a triple-well system
S Arathi,S Rajasekar +1 more
TL;DR: In this paper, the authors analyzed the stochastic resonance in a symmetric triple-well system with the depths of the wells being different, and they showed that the optimum value of noise intensity (DMAX) is minimum, while the signal-to-noise ratio is maximum when the ratio (R) of the depth of the middle and side wells is 1.
Journal ArticleDOI
Enhancement of signal-to-noise ratio
TL;DR: In this paper, it was shown that the ratio of signal-to-noise ratio at the output to that at the input can be made larger than unity when a nonlinear system is subjected to a weak periodic perturbation and a harmonic noise.
Journal ArticleDOI
Simulation of circuits demonstrating stochastic resonance
Gregory P. Harmer,Derek Abbott +1 more
TL;DR: Aperiodic stochastic resonance (ASR) is employed where noise can enhance the response of a nonlinear system to a weak aperiodic signal and it is shown that the Response of aNonlinear system is enhanced, regardless of the signal.