通过光纤链路实现任意相移的相位稳定频率传输

2022 20th International Conference on Optical Communications and Networks (ICOCN) Pub Date : 2022-08-12 DOI:10.1109/ICOCN55511.2022.9901227

Yawei Zhang, Xiaodong Liang, Dongjie Wang, Bowen Qiu, Zhongyang Xu, S. Pan

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引用次数: 0

摘要

提出了一种采用可调谐射频辅助信号进行无源相位校正的任意相移稳频移方法。可以通过稍微调整辅助射频信号的频率来调整两个位置之间的相移。并进行了示范实验。本端信号和辅助信号的频率分别为4ghz和2ghz。辅助信号的频移从0 kHz调谐到50 kHz。相位稳定的频率传输是通过2公里的光纤实现的，其中相移可以从0°到360°进行调谐。所有相移处的艾伦方差都能很好地满足彼此。该方法可用于具有特定相移的分布式系统的相位同步。

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Phase-stabilized frequency transfer with arbitrary phase shift via optical fiber links

A phase-stabilized frequency transfer method with arbitrary phase shift is proposed, in which a tunable auxiliary RF signal is used for passive phase correction. The phase shift between the two sites can be adjusted by slight tuning the frequency of the auxiliary RF signal. A demonstration experiment is carried out. The frequencies of the local signal and the auxiliary signal are 4 GHz and 2 GHz, respectively. The frequency shift of the auxiliary signal is tuned from 0 to 50 kHz. Phase-stabilized frequency transfer is achieved via a 2-km fiber, in which the phase shift can be tuned from 0 to 360°. The Allan variances at all phase shifts meet well with each other. The proposed method can be used for phase synchronization with a specific phase shift for a distributed system.

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2022 20th International Conference on Optical Communications and Networks (ICOCN)

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