Stochastic resonance in atomic optical bistability
نویسندگان
چکیده
Stochastic resonance SR is experimentally demonstrated in an atomic optical bistable system consisting of three-level atoms in -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.
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