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igh-Precision Single-Photon Laser Time Transfer with Temperature Drift Post-Compensation
Sensors ( IF 3.9 ) Pub Date : 2020-11-20 , DOI: 10.3390/s20226655
Wendong Meng , Yurong Wang , Kai Tang , Zhijie Zhang , Shuanggen Jin , Ivan Procházka , Zhongping Zhang , Guang Wu

Laser time transfer is of great significance in timing and global time synchronization. However, temperature drift may occur and affect the delay of the electronics system, optic generation and detection system. This paper proposes a post-processing method for the compensation of temperature-induced system delay, which does not require any changes to the hardware setup. The temperature drift and time stability of the whole system are compared with and without compensation. The results show that propagation delay drift as high as 240 ps caused by temperature changes is compensated. The temperature drift coefficient was diminished down to ~0.05 ps/°C from ~20.0 ps/°C. The system precision was promoted to ~2 ps from ~11 ps over a time period of 80,000 s. This method performs significant compensation of single-photon laser time transfer system propagation drift and will to help establish an ultra-stable laser time transfer link in a space application.

中文翻译:

具有温度漂移后补偿的高精度单光子激光时间传递

激光时间传输在定时和全局时间同步中具有重要意义。但是,温度漂移可能会发生并影响电子系统,光学元件生成和检测系统的延迟。本文提出了一种用于补偿温度引起的系统延迟的后处理方法,该方法不需要对硬件设置进行任何更改。比较有无补偿情况下整个系统的温度漂移和时间稳定性。结果表明,温度变化引起的传播延迟漂移高达240 ps。温度漂移系数从〜20.0 ps /°C降低到〜0.05 ps /°C。在80,000 s的时间段内,系统精度从〜11 ps提升至〜2 ps。
更新日期:2020-11-21
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