| 激光耦合同步及其在光纤混沌保密通信中的应用 |
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| 引用本文： | 颜森林,迟泽英,陈文建,孙小菡,张明德.激光耦合同步及其在光纤混沌保密通信中的应用[J].电子学报,2002,30(11):1663-1667. |
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| 作者姓名： | 颜森林 迟泽英 陈文建 孙小菡 张明德 |
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| 作者单位： | 1. 南京理工大学电子工程与光电技术学院,江苏南京 210094;2. 东南大学电子工程系,江苏南京 210096 |
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| 摘 要： | 本文建立了光纤混沌保密通信耦合同步系统模型,实现了外部光注入分布反馈半导体激光器激光混沌在长距离光纤传输中的耦合同步,证明了光纤的交叉相位调制是限制激光混沌在光纤传输中同步的主要原因,导出了这种传输的极限.该同步系统在长距离光纤混沌模拟和数字保密通信中的数值模拟表明,该系统确有较高的保密性能和反破译能力.光纤混沌保密通信是可以实现的.
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| 关 键 词： | 混沌 同步 光纤保密通信 |
| 文章编号： | 0372-2112(2002)11-1663-05 |
| 收稿时间： | 2002-01-30 |
Synchronization of Lasers Coupling System and Its Application in Optical Fiber Chaotic Secure Communication |
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| YAN Sen lin ,CHI Ze ying ,CHEN Wen jian ,SUN Xiao han ,ZHANG Ming de.Synchronization of Lasers Coupling System and Its Application in Optical Fiber Chaotic Secure Communication[J].Acta Electronica Sinica,2002,30(11):1663-1667. |
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| Authors: | YAN Sen lin CHI Ze ying CHEN Wen jian SUN Xiao han ZHANG Ming de |
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| Affiliation: | 1. School of Electronic Engineering & Photoelectronic Technology,Nanjing University of Science & Technology.Nanjing,Jiangsu 210094,China;2. Department of Electronic Engineering,Southeast University,Jiangsu 210096,China |
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| Abstract: | A model of synchronous chaotic coupling system for optical fiber chaotic secure communication is presented.A system with distributed feedback semiconductor lasers with external light injection of 1.31μm bas been successfully stimulated in long distance fiber.The synchronization is limited by the intercross-phase modulation in the fiber.The propagation limit is presented.Both analong and digital optical fiber chaotic secure communications with the system are studied by numerical simulations in the long propagating distances.The system shows a good ability of robust security and anti-code-breaking.Optical fiber chaotic secure communications can be realized. |
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| Keywords: | chaos synchronization optical fiber chaotic secure communications |
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