反馈强度对非线性光电延迟反馈环动力学的影响  

Effect of the Feedback Strength on the Dynamics of a Nonlinear Optoelectronic Delayed-Feedbackk Loop

作　　者：王玉春[1] 李晓文[1] 

机构地区：[1]北京师范大学物理系,北京100875

出　　处：《复杂系统与复杂性科学》2015年第1期92-95,共4页Complex Systems and Complexity Science

摘　　要：为研究反馈强度对非线性光电反馈系统动力学的影响,采用延迟偏微分方程作为非线性光电反馈系统的理论模型,通过理论分析和数值模拟的方法研究了在反馈强度的改变下系统的动力学状态。经研究发现:当反馈强度逐渐增大时,系统会呈现出从周期态到快慢时间尺度相互交叠的混沌呼吸子,再到完全的混沌态的一个丰富的动力学过程。This paper mainly studied the influence of the feedback strength on the dynamics of nonlinear optical feedback systems.We adopt Delay Partial Differential Equations as the theoretical model of nonlinear optical feedback systems,through the method of theoretical analysis and numerical simulation to study dynamics of the systems under the change of the feedback strength.We find that the system has a wide range of dynamical behavious as the feedback strength is increased gradually.It experiences periodic states,chaotic breather with slow and fast time scales,and then fully developed chaos.

关 键 词：延迟偏微分方程 光电反馈延迟系统 混沌 混沌呼吸子 

分 类 号：N93[自然科学总论] O41[理学—理论物理]