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.

Frequency Biases in a Cold-Atom Coherent Population Trapping Clock

Published

Author(s)

Elizabeth A. Donley, Eric M. Blanshan, Francois-Xavier R. Esnault, John E. Kitching

Abstract

A compact cold-atom clock based on coherent population trapping (CPT) has been developed. The clock typically demonstrates a short-term fractional frequency stability of 4x10-11/√τ limited by frequency noise on the interrogation lasers. The largest two systematic frequency shifts that can limit the clock's long-term stability are the light shift and the Doppler shift. These biases will be presented in detail.
Proceedings Title
Proceedings of the IEEE International Frequency Control Symposium
Conference Dates
May 20-22, 2014
Conference Location
Taipei
Conference Title
2014 IEEE International Frequency Control Symposium

Keywords

Atomic Clocks, Coherent Population Trapping, Laser Cooling

Citation

Donley, E. , Blanshan, E. , Esnault, F. and Kitching, J. (2014), Frequency Biases in a Cold-Atom Coherent Population Trapping Clock, Proceedings of the IEEE International Frequency Control Symposium, Taipei, -1, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=915857 (Accessed September 17, 2021)
Created May 22, 2014, Updated February 19, 2017