Delivery of high-stability optical and microwave frequency standards over an optical fiber network

Jun Ye, Jin Long Peng, R. Jason Jones, Kevin W. Holman, John L. Hall, David J. Jones, Scott A. Diddams, John Kitching, Sebastien Bize, James C. Bergquist, Leo W. Hollberg, Lennart Robertsson, Long Sheng Ma

Research output: Contribution to journalArticlepeer-review

195 Scopus citations


Optical and radio frequency standards located in JILA and National Institute of Standards and Technology (NIST) laboratories have been connected through a 3.45-km optical fiber link. An optical frequency standard based on an iodine-stabilized Nd:YAG laser at 1064 nm (with an instability of ∼4 × 10-14 at 1 s) has been transferred from JILA to NIST and simultaneously measured in both laboratories. In parallel, a hydrogen maser-based radio frequency standard (with an instability of ∼2.4 × 10-13 at 1 s) is transferred from NIST to JILA. Comparison between these frequency standards is made possible by the use of femtosecond frequency combs in both laboratories. The degradation of the optical and rf standards that are due to the instability in the transmission channel has been measured. Active noise cancellation is demonstrated to improve the transfer stability of the fiber link.

Original languageEnglish (US)
Pages (from-to)1459-1467
Number of pages9
JournalJournal of the Optical Society of America B: Optical Physics
Issue number7
StatePublished - Jul 2003

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Atomic and Molecular Physics, and Optics


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