基于锁相环混频的超稳定长距离光纤射频传输

2020 Joint Conference of the IEEE International Frequency Control Symposium and International Symposium on Applications of Ferroelectrics (IFCS-ISAF) Pub Date : 2020-07-01 DOI:10.1109/IFCS-ISAF41089.2020.9234877

Chenxia Liu, Shujin Zhou, Zhuoze Zhao, Hao Gao, Jianming Shang, Xing Chen, Bin Luo, Song Yu

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引用次数: 3

摘要

本文介绍了一种超稳定射频传输系统，该系统采用光纤链路进行长距离传输，无需任何中继系统。通过在混频过程中利用锁相环，相位共轭信号的信噪比提高了20 dB(@ rbw2mhz)。在1007公里的光纤链路上进行了实验，文中给出了实验的详细情况。测量到的2.4 GHz射频信号传输系统的分数频率稳定性接近$8.20\乘以10^{-14}@1\ \mathrm{s}$和$7.87\乘以10^{-17}@10000\ \mathrm{s}$。

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Ultrastable Long-haul Fibre-optic Radio Frequency Transfer Based on PLL Frequency Mixing

This paper presents the system for ultrastable radio frequency (RF) transfer over long-haul optical fiber link without any relay system. Signal to noise ratio of the phase conjugate signal is improved by 20 dB(@RBW 2 MHz) via utilising phase locked loop during the frequency mixing process. The experiments are performed over 1007 km fiber link, detailed information of which is given in this paper. The measured fractional frequency stability of 2.4 GHz RF signal transmission system approaches $8.20\times 10^{-14} @1\ \mathrm{s}$ and $7.87\times 10^{-17} @10000\ \mathrm{s}$.

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2020 Joint Conference of the IEEE International Frequency Control Symposium and International Symposium on Applications of Ferroelectrics (IFCS-ISAF)

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