光载信息能量同传方案及其通信检测应用  

Information and Power Over Fiber Scheme and Its Applications for Communications and Detections

作　　者：兰子林 邹喜华[1] 白文林 李沛轩[1] 李阳 潘炜[1] 闫连山[1] 蒋灵明 陈亮 LAN Zi-lin;ZOU Xi-hua;BAI Wen-lin;LI Pei-xuan;LI Yang;PAN Wei;YAN Lian-shan;JIANG Ling-ming;CHEN Liang(School of Information Science and Technology,Southwest Jiaotong University,Chengdu,Sichuan 611756,China;China Railway Signal and Communication Research&Design Institute Group Co.,Ltd.,Beijing 100070,China)

机构地区：[1]西南交通大学信息科学与技术学院,四川成都611756 [2]北京全路通信信号研究设计院集团有限公司,北京100070

出　　处：《电子学报》2022年第4期804-810,共7页Acta Electronica Sinica

基　　金：国家自然科学基金(No.61922069,No.62001401,No.61901397);四川省科技计划项目(No.2020YJ0014);中央高校基本科研业务费项目(No.2682021ZTPY103,No.2682021CX045)。

摘　　要：基于光纤的大传输带宽、微型传能通道、抗电磁干扰等优势,本文设计了一种光载信息能量同传方案.它基于光纤一体化分布式链路,结合微波光子模拟收发前端,同步实现能量远程配送与高频宽带信号的采集传输.首先,设计并测试了光纤传能(Power over Fiber,PoF)链路:高功率激光经多模光纤链路传输2 km后转换为百毫瓦级电能,为远端模块供电或电池充电.在此基础上,设计并测试了基于PoF的光载无线通信(Radio over Fiber,RoF)和电磁干扰检测链路.RoF链路实现了2.4 GHz频段的16QAM-OFDM宽带信号的2 km单模光纤传输;电磁干扰远程采集与监测链路实现了对高铁GSM-R(Global System for Mobile Communications-Railway)无线频段的带内干扰、邻带干扰和带外干扰的检测与识别等.相关方案和系统在易燃易爆、强电磁干扰、强辐射等特殊场景具有重要应用价值.Based on the distinct advantages of large transmission bandwidth,compact energy transmission channel,and strong electromagnetic interference(EMI)immunity from optical fiber,a hybrid scheme is designed for simultaneous transmission of both information and energy over fiber.Remote energy distribution and high-frequency broadband signal acquisition&transmission are simultaneously implemented,by incorporating a comprehensive fiber distribution link and an analog microwave photonic frontend.Firstly,the power over fiber(PoF)link is designed and experimentally demonstrated.The high-power laser energy is transmitted via a 2 km multi-mode fiber link and then converted into electrical energy of hundreds milliwatts,providing power for the remote module or battery.Moreover,PoF-based radio over fiber(RoF)link and EMI detection link have been also developed and successfully verified.In the experiments,a wideband 16 QAM-OFDM signal centered at 2.4 GHz is delivered through the RoF link with a 2 km single-mode fiber.Furthermore,the EMI remote monitoring link is used to perform the detection and identification of in-band,adjacent-band,and out-of-band EMIs for the GSM-R system along the high-speed railways.The proposed scheme and system will find significant applications in specific scenarios,such as inflammable and explosive conditions,strong EMI,and strong radiation.

关 键 词：光纤传能 电磁干扰检测 光载无线通信 微波光子技术 GSM-R 

分 类 号：TN929.11[电子电信—通信与信息系统]