Experimental control of coherence of a chaotic oscillator.
We give experimental evidence that a delayed feedback control strategy is able to efficiently enhance the coherence of an experimental self-sustained chaotic oscillator obtained from a CO2 laser with electro-optical feedback. We demonstrate that coherence control is achieved for various choices of the delay time in the feedback control, including values that would lead to the stabilization of an unstable periodic orbit embedded within the chaotic attractor. The relationship between the two processes is discussed.
Boccaletti
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Istituto Nazionale di Ottica Applicata, Largo Enrico Fermi, 6 I50125 Florence, Italy.
Allaria
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Meucci
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