Experimental investigations on the external cavity time signature in chaotic output of an incoherent optical feedback external cavity semiconductor laser

被引：34
|
作者：
Wu, Jia-Gui [1 ]
Xia, Guang-Qiong [1 ,2 ]
Cao, Liang-Ping [1 ,3 ]
Wu, Zheng-Mao [1 ]
机构：
[1] Southwest Univ, Sch Phys, Chongqing 400715, Peoples R China
[2] Nankai Univ, Key Lab Weak Light Nonlinear Photon, Minist Educ, Tianjin 300457, Peoples R China
[3] Chongqing Normal Univ, Elementary Educ Coll, Chongqing 400700, Peoples R China
来源：
OPTICS COMMUNICATIONS | 2009年 / 282卷 / 15期
关键词：
Chaos; Semiconductor laser; Incoherent optical feedback; External cavity time signature; COMMUNICATION SCHEME; OPTOELECTRONIC FEEDBACK; DIODE-LASERS; SUBJECT; DYNAMICS; SYSTEMS;
D O I：
10.1016/j.optcom.2009.04.046
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Chaotic dynamics of a semiconductor laser subject to incoherent optical feedback (IOF) are experimentally investigated, and the external cavity time are retrieved and measured from intensity time series of the laser output by using self-correlation function and the mutual information. Through moderating feedback strength and injection current of the laser, the external cavity time signature of the laser chaotic output is effectively attenuated, and then the security of such chaos encryption system can be assured to a certain degree. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码：3153 / 3156
页数：4
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