Loss of time-delay signature in the chaotic output of a semiconductor laser with optical feedback

Damien Rontani; Alexandre Locquet; Marc Sciamanna; David Citrin

doi:10.1364/OL.32.002960

Journal articles

Loss of time-delay signature in the chaotic output of a semiconductor laser with optical feedback

Damien Rontani ^{1, 2, 3, *} Alexandre Locquet ² Marc Sciamanna ¹ David Citrin ³

* Corresponding author

1 LMOPS - Laboratoire Matériaux Optiques, Photonique et Systèmes

2 UMI2958 - Georgia Tech - CNRS [Metz]

3 ECE GeorgiaTech - School of Electrical and Computer Engineering - Georgia Insitute of Technology

Abstract : We investigate theoretically the possibility of retrieving the value of the time delay of a semiconductor laser with an external optical feedback from the analysis of its intensity time series. When the feedback rate is moderate and the injection current set such that the laser relaxation-oscillation period is close to the delay, then the time-delay identification becomes extremely difficult, thus improving the security of chaos-based communications using external-cavity lasers.

Keywords : Instabilities chaos

Document type :

Journal articles

Domain :

Physics [physics] / Physics [physics] / Optics [physics.optics]

Engineering Sciences [physics] / Optics / Photonic

Nonlinear Sciences [physics] / Chaotic Dynamics [nlin.CD]

Complete list of metadatas

https://hal-supelec.archives-ouvertes.fr/hal-00207631
Contributor : Sébastien van Luchene <>
Submitted on : Thursday, January 17, 2008 - 11:14:28 PM
Last modification on : Tuesday, October 27, 2020 - 2:34:28 PM

Loss of time-delay signature in the chaotic output of a semiconductor laser with optical feedback

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Loss of time-delay signature in the chaotic output of a semiconductor laser with optical feedback

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