结构简单的D波段矢量毫米波信号产生的方法  

A New Scheme of D-Band mm-Wave Vector Signal Generation with Simple Structure

作　　者：刘翠微 余建军 Liu Cuiwei;Yu Jianjun(Key Laboratory of Electromagnetic Wave Information,Education of Ministry,School of Information 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]复旦大学信息科学与工程学院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：《光学学报》2021年第4期51-57,共7页Acta Optica Sinica

基　　金：国家自然科学基金(61527801,61720106015,61835002,61805043,61675048)。

摘　　要：提出一种新的基于单个强度调制器的D波段矢量毫米波产生方法。研究基于强度调制器,通过预编码技术,产生了八倍频D波段矢量毫米波信号,信号经过一定距离的无线传输之后输入接收端,最后对信号进行解调和误码分析。该方法具有一定的中心载波抑制功能,在无光学滤波器下成功传输了信号,降低了光载无线系统的链路成本。实验验证了152 GHz 4 GBaud正交相移编码(QPSK)信号的产生和传输,经过1 m的无线传输后,接收到的QPSK信号的误码率低于软判决前向纠错门限阈值(1.0×10^(-2))。In this paper,we proposed a new scheme to generate D-band mm-wave vector signals based on an intensity modulator.With this scheme,the eight-fold-frequency D-band mm-wave vector signals were generated based on an intensity modulator and the precoding technology.After wireless transmission for a certain distance,the signals were input to the receiving end,and then were demodulated and analyzed for error.Due to the center-carrier suppression of the scheme,the signals were successfully transmitted without the assistance of any optical filter,greatly reducing the link cost of the radio-over-fiber system.Furthermore,we experimentally demonstrated the generation and transmission of 152 GHz 4 GBaud quadrature phase shift keying(QPSK)signals,and the bit error rate of the QPSK signals received after 1 m wireless transmission was lower than the threshold of soft-decision forward error correction(1.0×10^(-2)).

关 键 词：光通信 D波段 光载无线 八倍频 预编码 强度调制器 

分 类 号：TN928[电子电信—通信与信息系统]