@InProceedings{Supelec406,
author = {Damien Rontani and Alexandre Locquet and Marc Sciamanna and David Citrin},
title = {{Masking the time-delay from the chaotic output of an external-cavity laser}},
year = {2008},
booktitle = {{Proceedings of SPIE : Semiconductor Lasers and Laser Dynamics III}},
volume = {6997},
number = {0D},
pages = {1-8},
month = {apr},
address = {Strasbourg (France)},
url = {http://dx.doi.org/10.1117/12.781307},
doi = {10.1117/12.781307},
abstract = {We investigate theoretically the identification of the external-cavity roundtrip time of an external-cavity semiconductor laser (ECSL). The time-delay identification is performed by analyzing the laser-intensity time series with conventional techniques based on the autocorrelation function or mutual information. We find that a weak feedback rate and a time-delay close to the laser's intrinsic relaxation-oscillation period are two conditions leading to difficult delay identification. This arduous time-delay identification is of particular interest for the security improvement of chaos-based communications schemes using ECSLs.}
}