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The Rochester Conferences on Coherence and Quantum Optics and the Quantum Information and Measurement meeting

Study of Stochastic Resonance in a Three-level Atomic Optical Bistability System

Amitabh Joshi, Haibin Wu, Min Xiao

Published Jan 1, 2007• 0 citations
Publisher

Abstract

Stochastic-resonance is experimentally demonstrated in optical bistability from an optical ring cavity containing three-level (A-type) rubidium atoms. The results obtained match well qualitatively with the theoretical predictions of the generic model for the SR phenomenon.
DOI
10.1364/cqo.2007.csua5

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Physical Review Letters•Oct 1, 2003•237 citations
Stochastic resonance (SR) is experimentally demonstrated in an atomic optical bistable system consisting of three-level atoms in $\ensuremath{\Lambda}$-type configuration confined in an optical ring cavity. The optical bistable system with enhanced Kerr nonlinearity due to atomic coherence is driven by a periodic signal and a Gaussian white noise source with variable amplitude, and displays an improved output signal-to-noise ratio, a characteristic signature of SR. The measured results match qualitatively with the theoretical predictions of the generic model for the SR phenomenon.