【摘要】 提出一种基于环形光纤链路的频率信号分布式稳相传输系统。通过相位自感知与光电协同补偿，在远端站恢复出频率为中心站频率2倍的频率信号，实现了频率信号多节点间的分布式稳相传输。系统采用环形光纤拓扑结构，在光纤环路内插入可复制的信号接收单元，实现各远端站对链路相位抖动的自主感知与实时同步。在中心站，通过光电协同补偿，显著提升了远端站频率信号的稳定度。实验搭建40 km光纤链路进行多节点稳相传输，并与传统补偿方式进行对比评估。结果表明：各远端站恢复信号时间抖动峰峰值小于1 ps，最优频率稳定度达到9.762×10^-14@1000 s，均方根（RMS）值低至0.11 ps左右；相比单一光延时线（RMS为0.1742 ps）与电移相器（RMS为0.2128 ps）补偿，光电协同补偿具有最优的时间抖动抑制效果。更多还原

【Abstract】 A distributed phase-stabilized frequency transmission system implemented over a ring fiber-optic link is proposed. Through phase self-sensing and optoelectronic cooperative compensation, frequency signals precisely twice the central station’s reference is recovered at remote stations, achieving multi-node distributed phase-stabilized frequency transmission. The system architecture employs a ring topology with replicable receiver modules, enabling phase selfsensing and real-time synchronization at remote stations. By implementing optoelectronic cooperative compensation at the central station, the system demonstrates significant improvement in phase stability across distributed nodes. An experimental setup of a 40 km fiber-optic link is constructed to perform multi-node phase-stabilized transmission, and it is compared and evaluated against traditional compensation methods. With measured results indicating less than 1 ps peak-topeak timing jitter and optimal frequency stability of 9.762×10-14@1000 s. The cooperative compensation scheme achieves a remarkable root mean square(RMS) of timing jitter of about 0.11 ps, outperforming both optical delay line(0.1742 ps RMS) and electronic phase shifter(0.2128 ps RMS) approaches, confirming its enhanced capability for precision frequency signal distribution in ring-based fiber networks.更多还原