Delay-induced deterministic resonance of chaotic dynamics

The authors show that time-delayed feedback can induce an optimal regularity in the pulsating dynamics of a nonlinear system without the need for an additional noise source. This deterministic delay-induced coherence resonance is reported experimentally in the chaotic dynamics of a laser diode subje...

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Bibliographic Details
Published in:Europhysics letters 2013-01, Vol.101 (2), p.1-1
Main Authors: Dal Bosco, A Karsaklian, Wolfersberger, D, Sciamanna, M
Format: Article
Language:English
Subjects:
Chaos theory
Coherence
Dynamical systems
Feedback
Lasers
Nonlinear dynamics
Optical feedback
Optimization
Online Access:Get full text
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Summary:The authors show that time-delayed feedback can induce an optimal regularity in the pulsating dynamics of a nonlinear system without the need for an additional noise source. This deterministic delay-induced coherence resonance is reported experimentally in the chaotic dynamics of a laser diode subject to a phase-conjugate optical feedback, when varying the amount of feedback light. Qualitatively similar resonance is found theoretically in the model of a time-delayed class-A laser. The resonance is therefore not related to an interplay between time-delayed dynamics and faster undamped relaxation oscillations and is thought to be generic for a large class of delayed nonlinear systems.
ISSN:0295-5075
1286-4854