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Summary form only given. The phenomenon known as stochastic resonance (SR) has been the subject of intensive investigations during the past ten years. The term describes a particular behaviour of the response of a bistable system, when a weak coherent signal is superimposed to stochastic fluctuations in input. One commonly expects that an increase of the noise level leads to a deterioration of the performance. In such systems however the noise can induce synchronized jumps between the two stable states. Hence, the response of the bistable system shows a resonance-like behavior versus the input noise-level, which is the main signature of SR. We report a full account of the observation of SR in the polarized emission of a pump modulated vertical cavity surface emitting lasers (VCSELs).
Date of Conference: 10-15 Sept. 2000