基于微波光子融合的时频数据一体化传输技术  

Integrated transmission technology of time-frequency data based on microwave photon fusion

作　　者：李昌瑾 刘海锋[1,2] 韩航程 闫宝罗[1,2] 李晓龙 林炜 刘波[1,2] LI Changjin;LIU Haifeng;HAN Hangcheng;YAN Baoluo;LI Xiaolong;LIN Wei;LIU Bo(Institute of Modern Optics,Nankai University,Tianjin 300350,China;Tianjin key Laboratory of photoelectric sensor andsensor network,Tianjin 300350,China;School of information and electronics,Beijing institute of technology,Beijing 100081,China)

机构地区：[1]南开大学现代光学研究所,天津300350 [2]天津市光电传感器与传感网络重点实验室,天津300350 [3]北京理工大学信息与电子学院,北京100081

出　　处：《光通信技术》2020年第9期48-51,共4页Optical Communication Technology

基　　金：科技部重点研发项目(2018YFB1802302)资助。

摘　　要：高精度、高稳定性的时频信号传输是在轨卫星能够正常工作的可靠保证,传统的采用冗余编码方式进行的时频传递系统传输链路带宽均在吉比特每秒以上。设计了一种新型时频传输系统,在带宽受限条件下对编码和解码方式进行了优化设计,实现在5 MHz链路带宽下的频标信号高精度传输,并利用微波光子融合技术实现了时频的高精度传递。结果显示该时频传输系统达到了1.65 ns的时间抖动和1.39×10-11/s、3.45×10-12/(10 s)的频率稳定度。High-precision and high-stability time-frequency signal transmission is a reliable guarantee for the normal operation of on-orbit satellites.The transmission link bandwidth of time-frequency transmission system using redundant coding method is above Gb/s level.In this paper,a new time-frequency transmission system is designed,which optimizes the encoding and decoding methods with limited bandwidth,and achieves high-precision transmission of frequency standard signals under the bandwidth of 5 MHz link.The high precision transmission of time-frequency is realized by microwave photon fusion.The results showed that the time jitter of the time-frequency transmission system reached 1.65 ns and the frequency stability of 1.39×10-11/s and 3.45×10-12/(10 s).

关 键 词：光通信 时频传递 微波光子融合 

分 类 号：TN929.12[电子电信—通信与信息系统]