Can Fixed Time Delay Signature be Concealed in Chaotic Semiconductor Laser With Optical Feedback?

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	Can Fixed Time Delay Signature be Concealed in Chaotic Semiconductor Laser With Optical Feedback?
	Wu, Yuan 1,2; Wang, Yun-Cai 1,2,3; Li, Pu 1,2; Wang, An-Bang 1,2,3; Zhang, Ming-Jiang 1,2,3
刊名	ieee journal of quantum electronics
	2012-11-01
卷号	48 期号:11 页码:1371-1379
关键词	Chaos optical feedback semiconductor laser time delay
ISSN号	0018-9197
产权排序	3
合作状况	国内
英文摘要	external-cavity lasers are usually used for chaos encryption in optical chaos-based communication systems. the external-cavity round-trip time (the time delay in the laser dynamics) is often regarded as an additional key to encode messages, which is a critical security parameter. the feasibility of identifying the time delay has been a crucial issue in chaotic optical communication. some researchers propose that the time delay can be hidden by modulating the value of feedback strength or increasing the number of feedback cavities. in this paper, we experimentally and numerically demonstrate that the time delay signatures cannot be concealed in optical feedback semiconductor lasers. whether single or double optical feedback, the time delay signatures can all be identified by the power spectrum analysis method. furthermore, adjusting the feedback strength, the pumping current and the time-delay value, we find that the extraction of the time delay signatures still cannot be influenced.
WOS标题词	science & technology ; technology ; physical sciences
类目[WOS]	engineering, electrical & electronic ; optics ; physics, applied
研究领域[WOS]	engineering ; optics ; physics
关键词[WOS]	synchronization ; systems ; diode ; identification ; subject ; series ; output
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000315455500001
公开日期	2013-06-27
内容类型	期刊论文
源URL	[http://ir.opt.ac.cn/handle/181661/20817]
专题	西安光学精密机械研究所_研究生部
作者单位	1.Taiyuan Univ Technol, Inst Optoelect Engn, Coll Phys & Optoelect, Taiyuan 030024, Peoples R China 2.Taiyuan Univ Technol, Key Lab Adv Transducers & Intelligent Control Sys, Minist Educ, Taiyuan 030024, Peoples R China 3.Chinese Acad Sci, Xian Inst Opt & Precis Mech, Xian 710119, Peoples R China
推荐引用方式 GB/T 7714	Wu, Yuan,Wang, Yun-Cai,Li, Pu,et al. Can Fixed Time Delay Signature be Concealed in Chaotic Semiconductor Laser With Optical Feedback?[J]. ieee journal of quantum electronics,2012,48(11):1371-1379.
APA	Wu, Yuan,Wang, Yun-Cai,Li, Pu,Wang, An-Bang,&Zhang, Ming-Jiang.(2012).Can Fixed Time Delay Signature be Concealed in Chaotic Semiconductor Laser With Optical Feedback?.ieee journal of quantum electronics,48(11),1371-1379.
MLA	Wu, Yuan,et al."Can Fixed Time Delay Signature be Concealed in Chaotic Semiconductor Laser With Optical Feedback?".ieee journal of quantum electronics 48.11(2012):1371-1379.