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
Citations
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Journal ArticleDOI
Stochastic Resonance of a Periodically Driven Bistable System with Two Different Kinds of Time Delays
TL;DR: In this paper, the authors studied the phenomenon of stochastic resonance in a periodically driven bistable system with correlations between multiplicative and additive white noise terms when there are two different kinds of time delays existed in the deterministic and fluctuating forces, respectively.
Journal ArticleDOI
Thermal noise suppression: how much does it cost?
TL;DR: In this paper, the authors show that the minimum cost is achieved when the system control parameters are held constant: any additional deterministic or random modulation produces an increase of the cost, and they discuss the implications of this phenomenon for those overdamped systems whose control parameters were intrinsically noisy, presenting a case study based on the example of a Brownian particle optically trapped in an oscillating potential.
Journal ArticleDOI
Detecting and measuring stochastic resonance in fractional-order systems via statistical complexity
Zhongkui Sun,Puni Dang,Wei Xu +2 more
TL;DR: In this paper, a stochastic dynamics in a fractional-order system subjected to Gaussian noise has been studied and the statistical complexity measure (SCM) has been defined and calculated in the fractionalorder Langevin model based on its Shannon entropy.
Journal ArticleDOI
Noisy-flow-induced instability in a reaction-diffusion system.
TL;DR: A generic reaction-diffusion-advection system where the flow velocity of the advection term is subjected to dichotomous noise with zero mean and Ornstein-Zernike correlation is considered.
Proceedings ArticleDOI
Performance evaluation of dither distributions of piezo electric actuators for nano-positioning
TL;DR: This work explores a relatively new control paradigm in the form of dither to successfully neutralize hysteresis, in particular for a Dahl Model based X-Y micro manipulator system working with feed-forward control mechanism.