Controlling Chaos In Erbium-Doped Fiber Amplifier

Controlling chaos and synchronization is one of the most important problems in the field of non-linear dynamics. It establish good theory and experimental foundation for the application of erbium-doped fiber amplifier in optical communication, optical detection etc. to study control and synchronization of chaotic erbium-doped fiber amplifier.In the dissertation, we mainly investigate the appearance and control of chaos in erbium-doped fiber amplifier. Simultaneously, we raise the concrete project of controlling chaos. In the first part, after summing up the recent development of optical chaos, an outline of important results of research on erbium-doped fiber amplifier is given. After that, the process and method of chaos generation in erbium-doped amplifier are discussed. Next we analyzed the stability of its stable solution and determined the condition of the threshold. In the second part, we present two new methods of controlling chaos to(in) erbium-doped fiber dual-ring amplifier, namely, mutual couple chaotic control and mutual couple chaotic parameter modulation. We given concrete scheme and good controlling result are obtained.