Chaos Controlling And Chaos Circuit Of Dual-ring Erbium-doped Fiber Laser

Erbium optical fiber laser is widely used in optical fiber secrecy communicationdomain, for its small volume, multi-export optical maser wavelength, tunable, stronganti-jamming capability, high power and other advantages. The research on erbium opticalfiber laser chaotic controlling becomes a hot topic in recent years. Nonlinear circuit theoryoffers a theoretical foundation to new nonlinear devices, and chaos phenomena also hashuge application prospect in many areas. It has become a key researching subject thatavoid, produce control or strengthen chaos phenomena on purpose in nonlinear circuits. Amethod that can control dual-ring erbium optical fiber laser feedback coefficient and phaseshift at the same time is given in this paper, and the circuit model of the controllingmethod is established as well. According to the circuit model, the chaotic controllingdynamics equation is established, then proved the feasibility and effectiveness of themodel through simulation.(1)The dynamic equation about the controlling method of dual-ring erbium opticalfiber laser chaos phase shift is established. Based on the dynamic equation about dual-ringerbium optical fiber laser, the dynamic equation about chaos phase shift control methodcan be established by combining the dynamic mode of double loop erbium optical fiberlaser chaos phase shift control method.(2)Summarizing the output rules of dual-ring erbium fiber laser chaos feedbackphase-shift controlling method. Under the dual-ring erbium fiber laser chaos feedbackphase-shift controlling method, the output state of the system will change with the changeof four control parameters. Discussing the evolution rules of system output state when thecontrol parameters changed in the whole domain of definition(3)The chaos circuit model of dual-ring erbium optical fiber laser is given. Accordingto the dynamic equations of double loop erbium fiber laser chaos feedback control method,the chaos circuit at special states is established, verifying the effectiveness of this method.