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通过延时偏振反馈控制的方法研究了单环掺铒光纤激光器混沌的产生。通过适当地调节延迟时间、耦合系数以及偏振角,研究了单环掺铒光纤激光器系统的动力学特性,给出了混沌产生的方式及混沌态的参数区间,实现了单环掺铒光纤激光器混沌的产生。进而利用混沌信号驱动法研究单环掺铒光纤激光器的混沌同步。结果表明,在适当的驱动强度下,无论两个单环掺铒光纤激光器在被驱动前处于混沌态还是周期态,都可以达到混沌同步。并且利用关联系数分析了驱动强度和偏振角对混沌同步性能的影响。
The generation of chaos in single-ring erbium-doped fiber laser is studied by the method of delayed polarization feedback control. By properly adjusting the delay time, the coupling coefficient and the polarization angle, the dynamics of single-ring Erbium-doped fiber laser system is studied. The chaos generation method and the parameter interval of chaotic state are given. The chaos The production. Then chaotic signal driving method is used to study the chaos synchronization of single-ring erbium-doped fiber laser. The results show that chaotic synchronization can be achieved no matter whether the two single-ring erbium-doped fiber lasers are chaotic or periodic before being driven at the proper driving intensity. And the influence of driving intensity and polarization angle on chaos synchronization performance is analyzed by using the correlation coefficient.