Chaos synchronization and chaotic signal masking in semiconductor lasers with optical feedback
Chaos synchronization and chaotic signal masking in semiconductor lasers with optical feedback
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DOI：
10.1109/jqe.2002.801883
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发表时间：
2002-09-01
影响因子：
2.5
通讯作者：
Ohtsubo, J
中科院分区：
文献类型：
--
作者：
Ohtsubo, J
对混沌同步及其在光反馈半导体激光器混沌数据传输中的应用进行了理论和实验研究。讨论了时滞微分系统的两种混沌同步方案--完全同步和广义同步。研究了系统中混沌同步的条件和对参数失配的鲁棒性。讨论了利用混沌掩蔽技术在光反馈半导体激光器中实现保密通信的可能性，并实现了1.5 GHz正弦信号的信息传输。提出了一种用于宽带混沌通信的混沌载波带宽增强方法。
Theoretical and experimental investigations of chaos synchronization and,its application to chaotic data transmissions in semiconductor lasers with optical feedback are presented. Two schemes of chaos synchronization-complete and generalized synchronization-are discussed in the delay differential systems. The conditions for chaos synchronization in the systems and the robustness for the parameter mismatches are,studied. The possibility of secure communications based on the chaos masking technique in semiconductor lasers with optical feedback is also discussed, and message transmission of a 1.5-GHz sinusoidal signal is demonstrated. The method of bandwidth enhancement of chaotic carriers is proposed for broad-band chaos communications.