29 November 2012 Chaos synchronization and communication in unidirectionally coupled VCSELs with fiber channel
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Abstract
A novel chaotic synchronization configuration is proposed. This system is constructed on the basis of unidirectionally coupled VCSELs and signal transmission in fiber. The transmitter VCSEL is subject to an isotropic optical feedback, the receiver VCSEL is subject to an orthogonal optical injection from the transmitter VCSEL, the chaotic signal transmission in fiber channel is adopted, also message encoding and decoding of the chaotic system have been investigated. The results show that, during to the fiber nonlinear and chromatic dispersion, the amplitude characteristics of chaotic signal are distorted partially and the system synchronization quality will be impaired, but message can be hidden efficiently in the chaotic signal during the fiber transmission with additive chaos modulation (ACM). Better decoding performance is achieved by choosing appropriate matched parameters.
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Lin-Fu Li, Jian-Jun Chen, "Chaos synchronization and communication in unidirectionally coupled VCSELs with fiber channel", Proc. SPIE 8554, Quantum and Nonlinear Optics II, 85541B (29 November 2012); doi: 10.1117/12.999509; https://doi.org/10.1117/12.999509
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