论文标题
长途光纤射频传输的多访问继电器站
Multiple-access relay stations for long-haul fiber-optic radio frequency transfer
论文作者
论文摘要
我们通过使用多访问继电器站（MARSS）报告了长途射频（RF）传输方案的实现。针对每个纤维子链路具有独立链接噪声补偿的提议方案有效地解决了长途转移的补偿带宽的限制。火星可以为前后纤维子链接共享相同的调制光信号，从而简化中继器站点的配置，并使转移系统具有多访问能力。同时，我们首次在理论上对火星位置对光纤射频RF转移的分数不稳定性的影响进行建模，这表明当前后光纤子链接的比率约为1：1 $时，火星位置对系统的性能几乎没有影响。我们在实验上通过使用一只火星连接260和280 km的纤维链接与小于$ 5.9 \ times10^{ - 14} $在1 s和$ 8.5 \ times10^{-17} $ 5.5 \ times10^{ - 17} $ 10,000 s的10,000 s的$ 5.6 \ times10^$ 14}的$ 5.5 \ times10^{ - 14} $ 5.5 \ times10^$ 14} $ 5.5 \ times10^$ 14} $ 5.5 \ times10^$ an火星的整合时间为1 s和10,000 s。提出的可伸缩技术可以任意在纤维链路中添加相同的火星，该链接具有极大的潜力，可以实现超长的Haul RF转移。
We report on the realization of a long-haul radio frequency (RF) transfer scheme by using multiple-access relay stations (MARSs). The proposed scheme with independent link noise compensation for each fiber sub-link effectively solves the limitation of compensation bandwidth for long-haul transfer. The MARS can have the capability to share the same modulated optical signal for the front and rear fiber sub-links, simplifying the configuration at the repeater station and enabling the transfer system to have the multiple-access capability. At the same time, we for the first time theoretically model the effect of the MARS position on the fractional frequency instability of the fiber-optic RF transfer, demonstrating that the MARS position has little effect on system's performance when the ratio of the front and rear fiber sub-links is around $1:1$. We experimentally demonstrate a 1 GHz signal transfer by using one MARS connecting 260 and 280 km fiber links with the fractional frequency instabilities of less than $5.9\times10^{-14}$ at 1 s and $8.5\times10^{-17}$ at 10,000 s at the remote site and of $5.6\times10^{-14}$ and $6.6\times10^{-17}$ at the integration times of 1 s and 10,000 s at the MARS. The proposed scalable technique can arbitrarily add the same MARSs in the fiber link, which has great potential in realizing ultra-long-haul RF transfer.
