Autocorrelation properties of chaotic delay dynamical systems: A study on semiconductor lasers

Abstract

We present a detailed experimental characterization of the autocorrelation properties of a delayed feedback semiconductor laser for different dynamical regimes. We show that in many cases the autocorrelation function of laser intensity dynamics can be approximated by the analytically derived autocorrelation function obtained from a linear stochastic model with delay. We extract a set of dynamic parameters from the fit with the analytic solutions and discuss the limits of validity of our approximation. The linear model captures multiple fundamental properties of delay systems, such as the shift and asymmetric broadening of the different delay echoes. Thus, our analysis provides significant additional insight into the relevant physical and dynamical properties of delayed feedback lasers.

Publication DOI: https://doi.org/10.1103/PhysRevE.90.052911
Divisions: College of Engineering & Physical Sciences
Additional Information: ©2014 American Physical Society
Uncontrolled Keywords: time delay,synchronisation,coupling behaviour,stochastic nature
PURE Output Type: Article
Published Date: 2014-11-12
Authors: Porte, Xavier
D'Huys, Otti (ORCID Profile 0000-0001-7498-6771)
Jüngling, Thomas
Brünner, Daniel
Soriano, Miguel C.
Fischer, Ingo

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