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Analysis and characterization of the hyperchaos generated by a semiconductor laser subject to a delayed feedback loop

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4 Author(s)
Vicente, R. ; Dept. de Fisica, Univ. de les Illes Balears, Palma de Mallorca, Spain ; Dauden, J. ; Colet, P. ; Toral, R.

We characterize the chaotic dynamics of semiconductor lasers subject to either optical or electrooptical feedback modeled by Lang-Kobayashi and Ikeda equations, respectively. This characterization is relevant for secure optical communications based on chaos encryption. In particular, for each system we compute as a function of tunable parameters the Lyapunov spectrum, Kaplan-Yorke dimension and Kolmogorov-Sinai entropy.

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Quantum Electronics, IEEE Journal of  (Volume:41 ,  Issue: 4 )