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Article Dans Une Revue Nonlinear Dynamics Année : 2018

Enhancing optical-feedback-induced chaotic dynamics in semiconductor ring lasers via optical injection

Nianqiang Li
  • Fonction : Auteur
R. M Nguimdo
  • Fonction : Auteur
A. Locquet
D. Citrin

Résumé

In this paper, we investigate the possibility of using optical injection to efficiently suppress the time-delay (TD) signatures of chaotic signals in a large experimentally accessible parameter range of semiconductor ring lasers (SRLs). We also study how this optical injection can improve the signal bandwidths. The injection signal is obtained from a master SRL with either optical self-or cross-feedback. For optical self-feedback configurations, it is found that the suppression of TD signatures is similar to what has been found in injected Fabry-Perot semiconductor lasers, i.e., narrow range of parameters with respect to the detuning and injection strengths. For cross-feedback configurations, however, the TD signatures can be suppressed in a wide range of parameters meanwhile the bandwidths are significantly improved for the same range of parameters. This is particularly useful for the security in chaos-based communications and also for generating random bits with improved properties.
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Dates et versions

hal-03008323 , version 1 (16-11-2020)

Identifiants

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Nianqiang Li, R. M Nguimdo, A. Locquet, D. Citrin. Enhancing optical-feedback-induced chaotic dynamics in semiconductor ring lasers via optical injection. Nonlinear Dynamics, 2018, 92 (2), pp.315-324. ⟨10.1007/s11071-018-4057-9⟩. ⟨hal-03008323⟩
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