光学学报, 2017, 37 (12): 1206002, 网络出版: 2018-09-06  

频率串扰对光纤频标传递性能的影响 下载: 583次

Impact of Frequency Crosstalk on Fiber Frequency Transfer Performance
作者单位
解放军理工大学通信工程学院, 江苏 南京 210007
摘要
在高精度光纤频标传递过程中,需要对光纤链路引入的相位波动进行测量和补偿,其中引入的频率串扰是影响频标传递性能因素之一。为评估频率串扰对光纤频标传递性能影响,建立了频率串扰对频率传递稳定度的影响模型。在光纤链路温度变化条件下,通过仿真分析和实验研究了频率串扰与稳定度损失之间的关系。结果表明,频标的稳定度损失与串扰因子和频率有关。串扰因子越大,信号的阿伦方差曲线整体上移幅度越大,且串扰因子和稳定度损失峰值近似呈线性关系;频标频率变化时,频标传递的长期稳定度并非只受由温度缓慢变化引起的时延缓慢漂移的影响,也与频率点和时延波动量有关。频率升高时,频率稳定度损失的峰值点向短稳移动。
Abstract
It is necessary to measure and compensate the phase fluctuation introduced by fiber optic links in high-precision fiber frequency transfer. Frequency crosstalk is one of the influence factors, which is easy to be introduced and has a certain impact on the frequency transfer performance. In order to evaluate the impact of frequency crosstalk on fiber frequency transfer performance, the influence model of frequency crosstalk on frequency transfer stability is established. The stability loss caused by frequency crosstalk due to temperature change of fiber link is analyzed by simulation and experiment. The results show that the stability loss of the frequency transfer is related to signal crosstalk factor and the frequency of frequency standard. The larger signal crosstalk factor, the larger the overall up-shift amplitude of Allen deviation curve, and the crosstalk factor is approximately linear with the stability loss peak value. When the frequency of frequency standard changes, the long-term stability of the frequency is not only affected by the slow delay drift caused by the temperature variations, but also related to frequency points and delay fluctuation. If the frequency rises, the peak of the frequency stability loss will move to the short term.

廖睿勇, 卢麟, 朱勇, 吴传信, 张宝富, 于龙强. 频率串扰对光纤频标传递性能的影响[J]. 光学学报, 2017, 37(12): 1206002. Ruiyong Liao, Lin Lu, Yong Zhu, Chuanxin Wu, Baofu Zhang, Longqiang Yu. Impact of Frequency Crosstalk on Fiber Frequency Transfer Performance[J]. Acta Optica Sinica, 2017, 37(12): 1206002.

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