1. Department of Physics, Beijing Normal University, Beijing 100875, China;2. CCAST (World Laboratory) P.O. Box 8730, Beijing 100080, China;3. Institute of Theoretical Physics, Academia Sinica, Beijing 100080, China
Abstract:
A dynamical variable feedback scheme is proposed to synchronize chaotic motion of two identical and nearly identical laser systems with an injected signal. The feedback synchronization method works well while the conventional variable-replacement synchronization methods are not realizable. Various practical situations for synchronizing two chaotic laser systems located distance away from each other are taken into account. The application of this synchronization approach to wide range of practical systems is emphasized.