Accession Number:

ADA503336

Title:

Progress on a Portable Rubidium Fountain Frequency Standard

Descriptive Note:

Conference paper

Corporate Author:

NATIONAL INST OF STANDARDS AND TECHNOLOGY BOULDER CO TIME AND FREQUENCY DIV

Report Date:

2008-12-01

Pagination or Media Count:

9.0

Abstract:

We are developing a simple and transportable laser-cooled rubidium Rb atomic fountain frequency standard. The optical package for this system uses DFB distributed feedback diode lasers and a frequency offset locking scheme to generate the optical frequencies needed for laser-cooling, launching, post-cooling, and detection of Rb atoms. This atomic fountain will be useful as a transfer standard and secondary standard for calibrating nontransportable frequency standards, as well as a measurement tool for the gravitational redshift. Here, we describe the progress made on this project, including our recent observation of a magnetooptical trap MOT, and the anticipated performance of our transportable Rb fountain frequency standard.

Subject Categories:

  • Lasers and Masers
  • Test Facilities, Equipment and Methods
  • Electricity and Magnetism
  • Optics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE