光纤双向时间比对中的单通道双向放大器研究  

Single Path Bidirectional Amplifier Used in Two-way Time Transfer Via Optical Fiber Link

作　　者：李晓亚[1] 朱勇[2] 卢麟[2] 李得龙[1] 曾智龙[3] 

机构地区：[1]解放军理工大学通信工程学院研究生2队,江苏南京210007 [2]解放军理工大学通信工程学院 [3]解放军理工大学通信工程学院研究生1队

出　　处：《军事通信技术》2014年第3期17-20,共4页Journal of Military Communications Technology

摘　　要：分析了利用单通道双向放大器拓展时频传递距离时的主要噪声来源,并对不同长度链路中SPBA噪声对接收信噪比和时间传递秒稳定度损失的影响进行仿真。采用光纤双向时间比对系统,对200km链路条件下SPBA引入的授时稳定度损失的影响进行测试,实验结果表明:SPBA能在完全保证链路对称性的前提下拓展传递距离,实验中未观测到SPBA导致的时间传递系统不稳定;200km链路中,加入一个SPBA引入的双向比对误差均方差为19.2ps,劣化秒稳定性约4.0×10-11。The noise sources in optical fiber link were analyzed, using the single path bidirec- tional amplifier to extend transfer distance. The signal to noise ratio of the receiver signal and the second-stability of time transfer degradation caused by the noises was simulated. Using two-way time transfer system, the time transfer stability degradation caused by the single path bidirection- al amplifier was measured. The results show that the single path bidirectional amplifier could ex- tend time transfer distance without destroying the symmetry of the two-way fiber link, and the time transfer system instability wasn＇t observed. In 200 km optical fiber link time transfer error of 19.2 ps and the second-stability degradation of 4×10^-11 caused by the single path bidirectional amplifier were measured.

关 键 词：双向时间比对 传递距离 对称性 增益 

分 类 号：TN929.11[电子电信—通信与信息系统]