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ECOLE SUPÉRIEURE D'ÉLECTRICITÉ OPTEL - Equipe Optique et électronique pour les télécoms |
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ECOLE SUPÉRIEURE D'ÉLECTRICITÉ OPTEL - Equipe Optique et électronique pour les télécoms |
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| HAL : hal-00397263, version 1 |
| DOI : 10.1109/JQE.2009.2013116 |
| Fiche détaillée |  Récupérer au format |
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| IEEE Journal of Quantum Electronics 45, 7 (2009) 879 - 891 |
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| Time-Delay Identification in a Chaotic Semiconductor Laser With Optical Feedback: A Dynamical Point of View |
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| Damien Rontani 1, 2Alexandre Locquet 1 |
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| (07/2009) |
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| A critical issue in optical chaos-based communications is the possibility to identify the parameters of the chaotic emitter and, hence, to break the security. In this paper, we study theoretically the identification of a chaotic emitter that consists of a semiconductor laser with an optical feedback. The identification of a critical security parameter, the external-cavity round-trip time (the time delay in the laser dynamics), is performed using both the auto-correlation function and delayed mutual information methods applied to the chaotic time-series. The influence on the time-delay identification of the experimentally tunable parameters, i.e., the feedback rate, the pumping current, and the time-delay value, is carefully studied. We show that difficult time-delay-identification scenarios strongly depend on the time-scales of the system dynamics as it undergoes a route to chaos, in particular on how close the relaxation oscillation period is from the external-cavity round-trip time. |
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| 1 : | Georgia Tech - CNRS (UMI2958) |
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CNRS : UMI2958 – Georgia Institute of Technology Atlanta – Georgia Tech Lorraine – SUPELEC – Université de Franche-Comté – Université Paul Verlaine - Metz – Ecole Nationale Supérieure des Arts et Metiers Metz |
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| 2 : | Laboratoire Matériaux Optiques, Photonique et Systèmes (LMOPS) |
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CNRS : UMR7132 – Université Paul Verlaine - Metz – SUPELEC |
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| 3 : | Instituto de Física de Cantabria (CSIC-UC) |
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Instituto de Física de Cantabria |
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| Domaine | : | Physique/Physique/Optique |
| hal-00397263, version 1 | |
| http://hal-supelec.archives-ouvertes.fr/hal-00397263 | |
| oai:hal-supelec.archives-ouvertes.fr:hal-00397263 | |
| Contributeur : Sébastien Van Luchene | |
| Soumis le : Vendredi 19 Juin 2009, 20:11:27 | |
| Dernière modification le : Vendredi 26 Juin 2009, 12:03:25 | |
