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

被引：209
|
作者：
Rontani, D.
Locquet, A.
Sciamanna, M.
Citrin, D. S.
机构：
[1] CNRS, LMOPS, UMR 7132, F-57070 Metz, France
[2] UMI Georgia Tech CNRS 2958, F-57070 Metz, France
[3] Georgia Inst Technol, Sch Elect & Comp Engn, Atlanta, GA 30324 USA
来源：
OPTICS LETTERS | 2007年 / 32卷 / 20期
基金：
美国国家科学基金会;
关键词：
D O I：
10.1364/OL.32.002960
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
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. (C) 2007 Optical Society of America
引用
收藏
页码：2960 / 2962
页数：3
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