摘要
提出了基于混频调制的稳定射频信号光传输系统,以创造性思维将两种射频信号结合在一起,同时通过一个激光二极管传输。一个频率分量用于检测相位波动,另一个频率分量为远端提供稳定频率的信号补偿。通过控制组件合理设置频率的比值参数,避免了频率间的相互干扰。实验中,借助1GHz检测信号在100km光纤上传输200MHz稳定信号,在105s传输时间内实现了艾伦方差为2×10^-17的频率传输稳定度。
The paper proposes a fiber-based stable radio frequency transfer system based on a hybrid frequency modulation scheme, creatively, two radio frequency signals are combined and simultaneously transferred by only one laser diode. One frequency component is used to detect the phase fluctuation, and the other one is providing a stable frequency of derivative compensated signal for the remote end. Through controling the components to set the ratio of frequency parameters properly to avoid interference between the frequency. In the experiment, a stable 200MHz signal is transferred over 100km optical fiber with the help of a 1GHz detecting signal, and Allan deviation for 2×10^-17 of frequency transfer stability in 105s transferred time is achieved.
出处
《光通信技术》
北大核心
2015年第4期33-35,共3页
Optical Communication Technology
基金
陕西省教育厅计划项目（编号：2013JK1146）资助.
关键词
光传输
光纤链路
频率调制
射频
optical transmission, fiber link, frequency modulation, RF
