Synchronization of chaotic erbium-doped fibre lasers and its application in secure communication
Zhang Sheng-Hai (张胜海)ab, Shen Ke (沈柯)b
a Department of Mathematics and Physics, Institute of Science, Zhengzhou Information Engineering University, Zhengzhou 450001, China; b Department of Physics, Changchun University of Science and Technology, Changchun 130022, China
Abstract We have investigated the synchronization of chaotic dual-ring erbium-doped fibre lasers using the delay feedback－injection scheme. Numerical simulation shows that two chaotic dual-ring erbium-doped fibre lasers can be well synchronized if the strengths of delay feedback and injection are suitable. Even though the effects of the noises and the difference between the two lasers are considered, the twins can still reach good synchronization. Secure communication could be realized using the scheme of message-masking based on the synchronization of the chaotic dual-ring erbium-doped fibre lasers.
Received: 13 November 2003
Revised: 12 April 2004
Accepted manuscript online:
Zhang Sheng-Hai (张胜海), Shen Ke (沈柯) Synchronization of chaotic erbium-doped fibre lasers and its application in secure communication 2004 Chinese Physics 13 1215
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