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Photonic generation and transmission of chaotic ultra wideband signals
Author(s): 
Pages: 191-199
Year: Issue:  8
Journal: Acta Physica Sinica

Keyword:  半导体激光器 混沌激光 超宽带信号 光载超宽带;
Abstract: 用光反馈半导体激光器产生混沌超宽带(UWB)信号,搭建了混沌UWB光载无线通信链路,实现了360,720 Mbit/s和1.44 Gbit/s三种不同传输速率下混沌UWB脉冲信号的生成和传输.在未经任何色散补偿处理的情况下,1.44 Gbit/s的混沌UWB信号在经过10 km单模光纤和0.6 m无线链路传输后,在天线接收端被成功解调.由于混沌UWB信号输出的随机性,对应的UWB信号频谱中未出现任何离散的谱线.这意味着利用混沌UWB信号实现的光载无线通信链路,可以完全避免离散谱线对系统传输性能的劣化.
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