Abstract
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 -long underground fiber link with a fractional instability of at , which is close to the theoretical limit for our transfer experiment. After , the relative uncertainty for the transfer is at the level of . Tests with a very short fiber show that noise in our stabilization system contributes fluctuations that are 2 orders of magnitude lower, namely, at , reaching after .
© 2009 Optical Society of America
Full Article | PDF ArticleMore Like This
S. M. F. Raupach, A. Koczwara, and G. Grosche
Opt. Express 22(22) 26537-26547 (2014)
Motohiro Kumagai, Miho Fujieda, Shigeo Nagano, and Mizuhiko Hosokawa
Opt. Lett. 34(19) 2949-2951 (2009)
Joonyoung Kim, Harald Schnatz, David S. Wu, Giuseppe Marra, David J. Richardson, and Radan Slavík
Opt. Lett. 40(18) 4198-4201 (2015)