掺铒光纤激光器反相位混沌同步及其编码

针对单模双环掺铒光纤激光器具有光耦合相互作用的非线性动力学特点，应用“交叉注入反相位双环对两环主动—被动”混沌同步方法，数值模拟实现了两组相互独立的单模单环掺铒光纤激光器激光分别和单模双环掺铒光纤激光器对应环激光混沌同步；提出并数值模拟了具有调制频率1kHz和15kHz的正弦信号的双环—两环的两路混沌隐藏编码保密通信系统，它们解码质量好，保密性能强，可以很好地应用在混沌多路保密通信中。

Chaos Synchronization Through Reverse-Phase and Its Encoding in Erbium-Doped Fiber Lasers

A chaotic synchronization method of the optical intercross-injecting and reverse-phase between dual-ring and two rings is presented,based on the nonlinear kinetic characteristic of two lasing fields coupling each other in erbium-doped fiber dual-ring laser. Numerically simulations show that the synchronous systems with two absolute single-mode erbium-doped fiber single-ring lasers and a single-mode erbium-doped fiber dual-ring laser can be chaotic synchronization. Two channels of the chaotic secure communications systems of dual-ring-two-rings are presented and numerically simulated,which mask two sinusoidal frequencies of 0.5 kHz and 10 kHz modulated signals. Their encoding quality is very good and security is robust. They can be well applied in multi-channel chaotic secure communications.