摘要
根据混沌理论提出了利用耦合法实现光学二次谐波混沌同步,在一定的泵浦强度下,选取合适的反馈系数,可以将光学二次谐波混沌状态调节到混沌周期同步状态,利用MATLAB数值模拟了光学二次谐波混沌系统的同步现象.数值计算结果表明:两个系统或者是多个二次谐波系统,在相同的泵浦源强度下,选取相同的耦合参数,无论是系统的初始条件相同还是不同,单向耦合法都可以实现混沌同步,从而验证了单向耦合法的正确性,为激光保密通信提供了理论基础.
Based on the theory of chaos, a method for chaotic synchronization in optical se〈：ond harmoni〈： generalion is proposed by using one-way coupling. Under the condition of controlling strength, chaotic behaviors can be controlled into periodic synchronization by choosing suitable parameters. The chaotic synchronization in optical second harmoni generation is numerical simulated with MATI,AB software. The simulation results show that two or more SHG system can reach chaotic synchronization at the same pump fields. Although they have is true,thus it can provide the theory for solution of communication
出处
《北华大学学报（自然科学版）》
CAS
2013年第5期530-533,共4页
Journal of Beihua University（Natural Science）
关键词
光学二次谐波
单向耦合
混沌同步
optical second harmonic generation
one-way coupling
chaotic synchronization
