双信道WDM光纤无线集成太赫兹传输系统  

Two Channel WDM Wireless and Optical Integration THz Transmission System

作　　者：李韦萍 王凯辉[1,2] 桑博涵 余建军[1,2] LI Wei-ping;WANG Kai-hui;SANG Bo-han;YU Jian-jun(Key Laboratory for Information Science of Electromagnetic Waves(MoE),Department of Communication Science and Engineering,Fudan University,Shanghai 200433,China;Shanghai Institute for Advanced Communication and Data Science,Fudan University,Shanghai 200433,China)

机构地区：[1]复旦大学通信科学与工程系和电磁波信息科学教育部重点实验室,上海200433 [2]复旦大学上海先进通信与数据科学研究院,上海200433

出　　处：《电子学报》2022年第10期2311-2317,共7页Acta Electronica Sinica

基　　金：国家自然科学基金(No.61935005,No.61922025,No.61527801,No.61675048,No.61720106015,No.61835002,No.61805043);国家重点研发计划(No.2018YFB1800900)。

摘　　要：为了进一步提升当前主流太赫兹系统的通信容量,本文基于光子辅助太赫兹生成技术、波分复用(Wavelength Division Multiplexing,WDM)、多输入多输出技术(Multiple-Input Multiple-Output,MIMO)以及先进的数字信号处理,提出一种N×N MIMO光纤-无线-光纤融合太赫兹传输系统模型,搭建双信道WDM的2×2 MIMO实验系统,并成功实现两路3 Gbaud四频相移键控(Quad-frequency Phase Shift Keying,QPSK)信号先后在10 km单模光纤(SMF-28)、3.8 m无线链路、2.2 km SMF-28上的传输,且误码率低于硬判决前向纠错(Hard-Decision Forward Error Correction,HD-FEC)的阈值3.8×10^(-3).In order to further improve the communication capacity of the current mainstream terahertz system,based on photon-assisted terahertz generation technology,wavelength division multiplexing(WDM),multiple input multiple output technology(MIMO)and advanced digital signal processing,a model of N×N MIMO fiber-wireless-fiber fusion terahertz transmission system is proposed.We built a dual-channel WDM 2×2 MIMO experimental system,and successfully implemented two 3 Gbaud quad-frequency phase shift keying(QPSK)signal transmission over 10 km single-mode fiber(SMF-28),3.8 m wireless link,2.2 km SMF-28.The measured system error rate is lower than the hard-decision forward error correction(HD-FEC)threshold of 3.8×10^(-3).

关 键 词：太赫兹 波分复用 多输入多输出技术 光子辅助 

分 类 号：TN929.11[电子电信—通信与信息系统]