环形空间耦合激光阵列的时空混沌同步  

Spatiotemporal chaotic synchronization in annular space lattice arrays of coupled lasers

作　　者：孙坚[1] 潘涛[1] 徐国定[1] 

机构地区：[1]苏州科技学院数理学院,江苏苏州215009

出　　处：《苏州科技学院学报（自然科学版）》2010年第4期23-27,共5页Journal of Suzhou University of Science and Technology （Natural Science Edition）

基　　金：江苏省自然科学基金资助项目(BK2001138);苏州科技学院科研基金资助项目(340912104)

摘　　要：通过数值模拟对多台单模Nd:YAG激光器激光环形阵列组成的系统的动力学行为进行了研究。阵列中这些激光束是在光场中空间局部耦合的相互作用和一定参数设置下进行的。数值研究表明,在一些相对小区域的参数范围内,激光之间空间耦合作用的距离一定时,相应激光束的强度之间可以实现混沌同步且具有一定特点。通过对功率谱和李雅普诺夫指数的计算和分析,可以确信所研究的强度同步的激光系统处于混沌状态。The dynamics properties of several single-mode annular arrays of laser system were investigated by numerical simulation.The lasers of the array were locally coupled through their optical fields and set up by some certain parameters.The results show that the intensity between some corresponding lasers can reach the state of chaotic synchronization and takes some characteristics under suitable parameters,especially when the distance of the space coupling between two arbitrary adjacent lasers is fixed.Through the computation and analysis of the power spectra and Lyapunov exponents,it can be convinced that the state of the laser system is chaotic.

关 键 词：激光阵列 强度 混沌同步 耦合 功率谱 李雅普诺夫指数 

分 类 号：O437.4[机械工程—光学工程]