氦氖激光器混沌反馈相位周期控制方法研究

通过分析氦氖激光器在光反馈下的混沌动力学特征，提出了氦氖激光器混沌反馈相位控制方法，并建立了激光混沌反馈相位周期控制下的动力学方程和物理模型。选取适当的反馈系数，加入相位控制器控制反馈光的相移，通过对反馈系数和反馈光相移的控制，可以将激光混沌控制到稳定态、周期态及混沌态。结果表明：在不同强度的反馈光下，通过1/8波长周期相移调制控制、1/4波长周期相移调制控制、半波长周期相移调制控制以及波长周期相移调制控制，氦氖激光器的混沌经过一定的弛豫时间可以被控制到单周期态、双周期态、三周期态以及多周期态等。

Abstract

The method of chaotic controlling is presented via controlling the phase in He-Ne lasers under optical feedback, which is based on the analysis of the chaotic dynamics characteristics of He-Ne lasers in the feedback light. The dynamics equations and physical model under the control of laser chaotic feedback phase cycle are established. Selecting appropriate feedback coefficient, the laser chaos can be controlled to a steady state, periodic state, and chaos state by controlling the feedback coefficient and the phase-shift of the feedback light using the phase controller in the feedback channel. Under the conditions of different intensities of feedback light, it is shown that, after a certain time of relaxation, chaos can be controlled into periodic state, dual periodic state, triple periodic state and multiple periodic state respectively by 1/8, 1/4, 1/2 and one wavelength periodic phase-shift modulation.

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蔡璐璐, 任秩倩, 万玉良, 吴飞. 氦氖激光器混沌反馈相位周期控制方法研究[J]. 激光与光电子学进展, 2014, 51(1): 011404. Cai Lulu, Ren Zhiqian, Wan Yuliang, Wu Fei. Study on Chaotic Controlling via Feedback Phase Periodicity in He-Ne Laser[J]. Laser & Optoelectronics Progress, 2014, 51(1): 011404.

氦氖激光器混沌反馈相位周期控制方法研究

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