Temperature-insensitive and high-precision frequency transfer based on fabricated in-house 1.05 km hollow-core anti-resonant fiber  

作　　者：Yundong Hao Zefeng Li Sensen Meng Bo Liu Zhende Zhai Lei Zheng Ye Wang Yange Liu 郝赟东;李泽丰;孟森森;刘波;翟真德;郑磊;王也;刘艳格(Institute of Modern Optics,Nankai University,Tianjin 300350,China;Shenzhen Sublime Photonics Co.,Ltd.,Shenzhen 518000,China)

机构地区：[1]Institute of Modern Optics,Nankai University,Tianjin 300350,China [2]Shenzhen Sublime Photonics Co.,Ltd.,Shenzhen 518000,China

出　　处：《Chinese Optics Letters》2024年第10期25-32,共8页中国光学快报（英文版）

基　　金：supported by the National Natural Science Foundation of China(Nos.61835006 and 62375143);the Fundamental Research Funds for the Central Universities。

摘　　要：We have prepared kilometer-scale low-loss hollow-core nested anti-resonant nodeless fibers by improving their structural design,which reduces the difficulty of fabricating low-loss hollow-core fibers over long distances.The lowest loss is 2.7 d B/km at 1506 nm,and this loss is less than 5 d B/km at 1417–1620 nm.High-precision frequency transfer is achieved using the fabricated 1050 m hollow-core fiber by locking the repetition frequency of the optical frequency comb to a rubidium atomic clock.The frequency stability is 1.67×10^(-12)/s and 5.66×10^(-14)/1000 s when the temperature is changed,and no phase compensation device is used.It is an order of magnitude lower compared to that of the conventional single-mode fiber.

关 键 词：hollow-core anti-resonant fiber thermal coefficient delay frequency transfer femtosecond comb 

分 类 号：TN253[电子电信—物理电子学]