• DocumentCode
    2939879
  • Title

    An improved, optically-pumped, primary frequency standard

  • Author

    Hasegawa, A. ; Fukuda, K. ; Kotake, N. ; Kajita, M. ; Morikawa, T. ; Lee, W.D. ; Nelson, C. ; Jennings, D.A. ; Mullen, L. ; Shiriey, J.H. ; Drullinger, R.

  • Author_Institution
    Commun. Res. Lab., Minist. of Posts & Telecommun., Tokyo, Japan
  • fYear
    1998
  • fDate
    6-10 July 1998
  • Firstpage
    177
  • Lastpage
    178
  • Abstract
    An improved primary frequency standard based on an optically-pumped, thermal, atomic-beam has been jointly developed by CRL and NIST. The design details along with the first evaluation and comparison with NIST´s existing standard are presented.
  • Keywords
    atomic beams; atomic clocks; caesium; frequency standards; masers; measurement uncertainty; optical pumping; optical saturable absorption; radiation pressure; Cs; Rabi line overlap shifts; Ramsey signal; Zeeman frequency; atomic resonance; cavity pulling; clock operating system; frequency stabilized laser; optically-pumped thermal atomic-beam; primary frequency standard; saturated absorption; uncertainty limit; Atom optics; Atomic beams; Laser noise; NIST; Optical saturation; Optical sensors; Radio frequency; Resonance; Servomechanisms; Standards development;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Precision Electromagnetic Measurements Digest, 1998 Conference on
  • Conference_Location
    Washington, DC, USA
  • Print_ISBN
    0-7803-5018-9
  • Type

    conf

  • DOI
    10.1109/CPEM.1998.699846
  • Filename
    699846