高精度光纤时间频率一体化传递

杨文哲; 杨宏雷; 王学运; 张升康; 赵环; 杨军; 冯克明

doi:10.11999/JEIT180807

高精度光纤时间频率一体化传递

doi: 10.11999/JEIT180807

杨文哲^{1, 2, 3},
杨宏雷^{1, 2, 3},
王学运^{1, 2, 3},
张升康^{1, 2, 3, ,},
赵环^{1, 2, 3},
杨军^{1, 2, 3},
冯克明³

1.
北京无线电计量测试研究所北京 100854
2.
计量与校准技术国家重点实验室北京 100854
3.
中国航天科工集团第二研究院北京 100854

详细信息

作者简介:
杨文哲：男，1991年生，博士生，研究方向为时间同步与校准技术等

杨宏雷：男，1990年生，工程师，研究方向为光频梳及其精密测量应用等

王学运：男，1982年生，高级工程师，研究方向为时间同步与校准技术等

张升康：男，1980年生，研究员，研究方向为时间同步与校准技术等

赵环：女，1980年生，高级工程师，研究方向为光学等

杨军：男，1970年生，研究员，研究方向为守时与时间同步技术等

冯克明：男，1966年生，研究员，研究方向为信号与系统等

通讯作者:
张升康　Shengkang.zhang@hotmail.com

中图分类号: TN929.11
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- 被引次数: 0
出版历程
- 收稿日期: 2018-08-17
- 修回日期: 2019-01-28
- 网络出版日期: 2019-02-16
- 刊出日期: 2019-07-01

High Precision Time and Frequency Integration Transfer via Optical Fiber

Wenzhe YANG^{1, 2, 3},
Honglei YANG^{1, 2, 3},
Xueyun WANG^{1, 2, 3},
Shengkang ZHANG^{1, 2, 3
, ,},
Huan ZHAO^{1, 2, 3},
Jun YANG^{1, 2, 3},
Keming FENG³

1.
Beijing Institute of Radio Metrology and Measurement, Beijing 100854, China
2.
Science and Technology on Metrology and Calibration Laboratory, Beijing 100854, China
3.
The Second Academy of China Aerospace, Beijing 100854, China

摘要

摘要: 为满足各工程应用领域对于高精度时间频率同步的需求，降低系统复杂度，保障大规模光纤时频传递网络的顺利建设，该文提出基于伪码调制技术的光纤时间频率一体化传递方法，设计并搭建了光纤时间频率一体化传递系统，完成了光纤单向和双向时频一体化传递。在单向时频传递试验中，分析了温度变化对于系统传输时延的影响；在双向时频传递试验中，实现了时间频率的高精度传递，系统附加时间传递抖动为0.28 ps/s, 0.82 ps/1000 s，附加频率传递不稳定度为4.94×10^–13/s, 6.39×10^–17/40000 s。试验结果表明，该方法实现了时间、频率一体化高精度同步，且系统附加时间传递抖动优于目前各光纤时间同步方案。
- 光纤 /
- 时间传递 /
- 频率传递 /
- 伪码调制
Abstract: To satisfy the demand of the high precision time and frequency synchronization for engineering application, to reduce system complexity and ensure the construction of large-scale optical fiber network for time and frequency transmission, a method of high precision time and frequency integration transfer via optical fiber based on pseudo-code modulation is developed. The optical fiber time and frequency transfer system is designed and built. The unidirectional and bidirectional time and frequency transfer test via optical fiber are completed. In the unidirectional time-frequency transfer test, the influence of temperature change on the transmission delay of the system is analyzed. In the bidirectional time-frequency transfer test, the system additional time transfer jitter is 0.28 ps/s, 0.82 ps/1000 s, the additional frequency transfer instability is 4.94×10^–13/s, and 6.39×10^–17/40000 s. The results show that the proposed method achieves high precision time and frequency integration synchronization, and the system additional time transfer jitter is better than the current optical fiber time synchronization schemes.
- Optical fiber /
- Time transfer /
- Frequency transfer /
- Pseudo-code modulation

HTML全文

图 1 光纤单向时间频率一体化传递原理图

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图 2 光纤单向时间频率一体化传递系统装置图

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图 3 时延测量结果与温度变化曲线

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图 4 单向传递系统频率传递稳定度曲线

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图 5 光纤双向时间频率一体化同步原理图

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图 6 光纤双向时间频率一体化同步试验系统装置图

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图 7 光纤双向时间同步结果

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图 8 光纤双向时间传递稳定度结果

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图 9 光纤双向频率传递稳定度结果

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表 1 光纤双向传递实验结果与国际顶尖实验结果比对

方案	年份	传输距离(km)	时间同步稳定度结果		频率传递稳定度结果
方案	年份	传输距离(km)	秒稳定度(ps/s)	长期稳定度	秒稳定度(/s)	长期稳定度
文献[23]	2014	300	40	11 ps/86400 s	—	—
文献[20]	2015	120	30	0.7 ps/1000 s	—	—
文献[24]	2015	短光纤(米级)	0.3	20 fs/10000 s	—	—
文献[16]	2010	204	—	—	6×10^–14	5×10^–17/10⁵ s
文献[18]	2012	80	—	—	7×10^–15	5×10^–19/86400 s
本文	2018	100	0.28	1.19 ps/10000 s	4.94×10^–13	6.39×10^–17/40000 s

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