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提出半导体激光器混沌光电延时反馈控制方法.通过附加一个光电延时电路控制系统,建立了三个有光电延时反馈条件下的注入激光混沌控制物理模型.进行了有控制时的最大Lyapunov指数分析.数字仿真发现,当调节延时时间和反馈光电流时,能控制激光混沌到3周期态、5周期态等;当周期键控光电流时,能控制激光混沌到8周期态、9周期态等;最后,通过组合应用光电延时反馈控制电路系统与附加周期调制驱动电流时,能有效地控制激光混沌到单周期态以及其他周期态.
A control method for chaotic optoelectronic delay feedback control of semiconductor laser is proposed. By adding a control system of optoelectronic delay circuit, three physical models of chaotic control of injected laser with optoelectronic delay feedback are established. The maximum Lyapunov exponent analysis The numerical simulation shows that when the delay time and the feedback photocurrent are controlled, the laser chaos can be controlled to the 3-cycle state and the 5-period state, etc. When the periodic keying photocurrent, the laser chaos can be controlled to 8-cycle state and 9-cycle state Etc. Finally, the chaos of the laser to the single-cycle state and other periodic states can be effectively controlled by the combined application of the photoelectric delay feedback control circuit system and the additional periodic modulation drive current.