基于10 km弱耦合七芯光纤的信能共传技术  

The Co-Transmission Technique of Signal and Power over 10 km Weakly-Coupled Seven-Core Fiber

作　　者：杨海林 王珊 彭迪 张振荣[3] 向梦 付松年 李建平 秦玉文 YANG Hai-lin;WANG Shan;PENG Di;ZHANG Zhen-rong;XIANG Meng;FU Song-nian;LI Jian-ping;QIN Yu-wen(Institute of Advanced Photonics Technology,School of Information Engineering,Guangdong University of Technology,Guangzhou,Guangdong 510006,China;Key Laboratory of Photonic Technology for Integrated Sensing and Communication,Ministry of Education,Guangdong University of Technology,Guangzhou,Guangdong 510006,China;School of Computer and Electronic Information,Guangxi University,Nanning,Guangxi 530004,China)

机构地区：[1]广东工业大学信息工程学院先进光子技术研究院,广东广州510006 [2]广东工业大学通感融合光子技术教育部重点实验室,广东广州510006 [3]广西大学计算机与电子信息学院,广西南宁530004

出　　处：《电子学报》2024年第8期2557-2562,共6页Acta Electronica Sinica

基　　金：国家自然科学基金(No.62025502);粤桂联合基金重点项目(No.2021GXNSFDA076001)。

摘　　要：随着5G微基站建设密度急剧增加,因采用传统电缆供电方式,5G网络的建设成本和部署难度将大幅提升.光纤信能共传技术作为一种新型供电方式,利用光纤作为传输介质,实现1064 nm能量光和1550 nm信号光的共同传输,同时满足高速信号的5G前传和5G微基站的集中化能量管理.本文提出一种基于空分复用技术的光纤信能共传方案,基于10 km弱耦合七芯光纤实验实现了10 W能量光和1.5 Gbit/s速率5G新空口(New Radio,NR)信号光的共同传输,远端通过光电转换效率为35%的光伏电池获得了0.42 W的电功率,可驱动一个远端天线单元(Remote Antenna Unit,RAU),7 h连续监测接收能量光功率的波动范围小于0.4%.与此同时,接收到的5G NR信号误差向量幅度值(Error Vector Magnitude,EVM)仅为0.38%,创纪录地实现了6.3 W·(Gbit/s)·km电功率-容量-距离积.With the rapidly increase of the construction density of 5G micro base stations,the traditional cable power supply mode will greatly increase the construction cost and layout difficulty of 5G network.The co-transmission technique of signal and power over optical fiber as a new power supply mode,uses optical fiber as the transmission medium and cotransmits 1064 nm energy light and 1550 nm signal light,which can not only meet the high-speed 5G signal fronthaul,but also meet the centralized energy management of 5G micro base station.In this paper,a co-transmission scheme of signal and power over optical fiber based on space division multiplexing technology is proposed.10 W energy light and 1.5 Gbit/s 5G new radio(NR)signal light are co-transmitted in the 10 km weakly-coupled seven-core fiber experiment.The 0.42 W electric power can be obtained by a photovoltaic converter with an optical-to-electrical conversion efficiency of 35%,which can drive a remote antenna unit(RAU).The fluctuation range of received optical power of energy light for 7 hours continu⁃ous monitoring is less than 0.4%.Meanwhile,the error vector amplitude value(EVM)of the received 5G NR signal is only 0.38%,achieving a record 6.3 W·(Gbit/s)·km electric power-capacity-distance product.

关 键 词：空分复用 5G前传 高功率激光 光纤信能共传 

分 类 号：TN929.11[电子电信—通信与信息系统]