混沌激光调制实现二次谐波系统混沌反控制与混沌同步

Synchronyzation of Chaos In Second Harmonic Generation By Modulation Using Chatoic Laser

提出了利用混沌激光调制实现二次谐波系统混沌同步的方法。利用混沌激光调制泵浦场,选择合适的调制强度,可以将二次谐波系统从周期态控制到混沌态,实现光学二次谐波系统的混沌反控制。数值分析结果表明,如果两个或多个二次谐波系统的泵浦场同时被混沌激光信号调制,这些系统尽管初始条件不同,在确定的参数范围内,通过调整调制强度,可以实现两个或多个二次谐波系统混沌同步。即可以利用混沌激光调制泵浦场也可以通过调制二次谐波系统调谐参数来实现光学二次谐波系统的混沌反控制与同步,并对混沌激光调制结果与周期信号调制结果进行了比较。光学二次谐波系统的混沌反控制与同步对混沌的保密通讯研究有着一定的参考价值。

A method for anti-controlling and synchronization of chaos based on chaotic laser modulating is proposed.If the pump field is modulated by chaotic laser and suitable modulating strength is applied in second-harmonic generation(SHE),the period behaviors can be controlled into chaotic.The simulation results show that two or more SHG systems can reach chaotic synchronization when their pump fields are modulated by chaotic laser.Although there are different initial conditions,two or more SHG systems can also reach chaotic synchronization when their modulation parameters are modulated by chaotic laser,the results are different from periodic modulation.The synchronization results are compared in general terms.