Optical frequency transfer via 146 km fiber link with 10-19 relative accuracy

Optical frequency transfer via 146 km fiber link with 10-19 relative accuracy
复制标题

DOI:
10.1364/ol.34.002270
复制
发表时间:
2009-08-01
期刊:
影响因子:
3.6
通讯作者:
Schnatz, H.
Schnatz, H.
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Grosche, G.;Terra, O.;Schnatz, H.

文献摘要

被引文献

相似文献

我们演示了直接从一个国家的最先进的光频率标准的超稳定的光频率的长距离传输。使用主动稳定系统,我们通过146公里长的地下光纤链路提供频率,1秒时的分数不稳定性为3 x 10(-15),这接近我们传输实验的理论极限。30,000 s后,传输的相对不确定度为1 x 10(-19)。使用非常短的光纤进行的测试表明,我们的稳定系统中的噪声贡献的波动低2个数量级,即1 s时为3 x 10(-17),4000 s后达到10(-20)。(C)2009年美国光学学会
We demonstrate the long-distance transmission of an ultrastable optical frequency derived directly from a state-of-the-art optical frequency standard. Using an active stabilization system we deliver the frequency via a 146-km-long underground fiber link with a fractional instability of 3 x 10(-15) at 1 s, which is close to the theoretical limit for our transfer experiment. After 30,000 s, the relative uncertainty for the transfer is at the level of 1 x 10(-19). Tests with a very short fiber show that noise in our stabilization system contributes fluctuations that are 2 orders of magnitude lower, namely, 3 x 10(-17) at 1 s, reaching 10(-20) after 4000 s. (C) 2009 Optical Society of America