摘要
为了明确温度变化时双向波长的选择对时延不对称的具体影响,利用传输时延与温度的关系模型,选择多组相邻波长在双向波分复用时频传输系统中仿真双向时延波动差。结果表明,选择常规波段中任意两个相邻波长进行双向传输,一天内温度变化最大时双向时延波动差最小值为0.04 fs/km,最大值为0.0634 fs/km。该数据可为长距离、高精度时频系统的传输延迟补偿和色散补偿方法的研究以及波分复用系统双向传输波长的选择提供参考。
For the sake of making clear the specific influence of bidirectional wavelength selection on time delay asymmetry when the temperature changes,this paper utilized the relationship model between transmission delay and temperature to simulate the bidirectional delay fluctuation difference when multiple groups of adjacent wavelengths were selected for bidirectional timefrequency transmission simulation in Wavelength Division Multiplexing(WDM)system.The result showed that choosing any two adjacent wavelengths in the conventional band for bidirectional transmission,the minimum value of bidirectional delay fluctuation difference was 0.04 fs/km and the maximum value was 0.0634 fs/km when the temperature change was the largest in one day.The data can provide a reference for the study of transmission delay compensation and dispersion compensation methods in long-distance and high-precision time-frequency systems and the selection of bidirectional transmission wavelength in WDM systems.
作者
谭小容
许江宁
陈丁
梁益丰
吴苗
TAN Xiaorong;XU Jiangning;CHEN Ding;LIANG Yifeng;WU Miao(College of Electrical Engineering,Chinese People’s Liberation Army Naval University of Engineering,Wuhan 430033,China;College of Electronic and Information Engineering,Jiujiang University,Jiujiang,Jiangxi 332005,China)
出处
《导航定位学报》
CSCD
2021年第6期50-55,共6页
Journal of Navigation and Positioning
基金
国家自然科学基金项目(41804076)
湖北省自然科学基金项目(2018CFB544)
国家重点研发计划项目(2016YFB0501700,2016YFB0501701)
九江学院科研课题项目(2014SKYB009)。
关键词
波分复用
时频传输
传输时延
时延波动
wavelength division multiplexing
time-frequency transmission
transmission delay
delay fluctuation
