28.09 Tbit/s 12000 km超高容量距离积单模光纤传输系统
ACTA OPTICA SINICA(2022)
Abstract
近年来网络数据流量呈现爆发式增长,光纤通信系统作为全球宽带网络的基础,已承载着90%以上的数据流量,并继续朝着多维、超大容量、超长距离等方向发展.搭建了一套模拟跨洋传输的超高容量距离积单模光纤传输系统实验平台.在发射端,根据传输信道光信噪比,采用不同信息熵产生不同传输速率的偏振复用概率整形16阶正交幅度调制光信号.光纤传输链路是由国产超低损大有效面积光纤与国产超宽带低噪声C波段掺铒光纤放大器组成.整个系统基于129个波长信道(波长范围为1529.8~1568.2 nm)进行了传输验证,得到的传输容量为28.09 Tbit/s,传输距离为12000 km,总容量距离积达到337 Pbit·s-1·km.
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Key words
optical communications, high speed optical fiber communication, transoceanic transmission system, wavelength division multiplexing, polarization multiplexing, probability shaping modulation format
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