面向5G的基于RSOA的50 Gb/s PAM4 WDM-PON前传网络  

5G oriented 50 Gb/s PAM4 WDM-PON fronthaul networks based on RSOA

作　　者：张晨希 张春蕾[1] 赵钢明 ZHANG Chenxi;ZHANG Chunlei;ZHAO Gangming(School of Electronic and Information Engineering,Lanzhou Jiaotong university,Lanzhou 730070,China)

机构地区：[1]兰州交通大学电子与信息工程学院,兰州730070

出　　处：《光通信技术》2020年第4期8-12,共5页Optical Communication Technology

摘　　要：为了满足5G前传网络发展的需要,提供更大的带宽,在基于反射式半导体放大器(RSOA)再调制的波分复用无源光网络(WDM-PON)系统中,采用下行速率为50 Gb/s的四脉冲幅度调制(PAM4)信号和上行速率为10 Gb/s的非归零(NRZ)信号,构成不对称传输架构的双向通信系统,将其作为前传网络的承载方案。在理论研究的基础上,使用仿真软件Optisystem对基于RSOA再调制的WDM-PON系统进行了仿真和分析,分析了不同发射光功率下系统的传输性能;分析了背靠背和有色散补偿的2种条件下上、下行传输系统的性能。证明了采用下行50 Gb/s PAM4信号和上行10 Gb/s NRZ信号的WDM-PON可作为前传网络的承载方案。In order to meet the needs of the development of the 5G fronthaul networks and provide greater bandwidth, in this paper, a four pulse amplitude modulation(PAM4) signal with a downlink rate of 50 Gb/s and an non return to zero(NRZ) signal with an uplink rate of 10 Gb/s are used to constitute a two-way communication system in the reflective semiconductor amplifier(RSOA) based on wavelength division multiplexing passive optical network(WDM-PON) system with an asymmetric transmission architecture as a fronthaul network carrying scheme. The simulation software Optisystem is used to simulate and analyze the WDM-PON system based on RSOA remodulation, and analyzes the transmission performance of the system at different transmit optical power;The performance of the uplink and downlink transmission system is analyzed under the conditions of back-to-back and dispersion compensation. It is proved that WDM-PON with downlink 50 Gb/s PAM4 signal and uplink 10 Gb/s NRZ signal can be used as a fronthaul network carrying scheme.

关 键 词：前传网络 波分复用无源光网络 四脉冲幅度调制 反射式半导体放大器 5G 

分 类 号：TN929.11[电子电信—通信与信息系统]