Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Two-Way Link for Time Interval Comparison of Optical Clocks over Free-Space

Published

Author(s)

Fabrizio R. Giorgetta, William C. Swann, Ian R. Coddington, Esther Baumann, Jean-Daniel Deschenes, Laura C. Sinclair, Alexander M. Zolot, Nathan R. Newbury

Abstract

We demonstrate a free-space link for clock comparisons based on the two-way exchange of pulse trains from combs. The residual uncertainty is 5 * 10^17 in 100 seconds over a 120 m air path, with longer distances possible.
Proceedings Title
Conference on Lasers and Electro-Optics (CLEO)
Conference Dates
May 6-11, 2012
Conference Location
San Jose, CA

Keywords

frequency comb, frequency transfer, optical clocks

Citation

Giorgetta, F. , Swann, W. , Coddington, I. , Baumann, E. , Deschenes, J. , Sinclair, L. , Zolot, A. and Newbury, N. (2012), Two-Way Link for Time Interval Comparison of Optical Clocks over Free-Space, Conference on Lasers and Electro-Optics (CLEO), San Jose, CA, [online], https://doi.org/10.1364/CLEO_SI.2012.CTh5D.10 (Accessed March 29, 2024)
Created May 11, 2012, Updated November 10, 2018