• DocumentCode
    1083008
  • Title

    FM eliminated CH4locked frequency stabilization of 3.39 µm He-Ne laser in dual feedback control

  • Author

    Nakazawa, Masataka ; Nakamura, Jun-ichi ; Musha, Toshimitsu

  • Author_Institution
    NTT Corp., Ibaraki, Japan
  • Volume
    17
  • Issue
    1
  • fYear
    1981
  • fDate
    1/1/1981 12:00:00 AM
  • Firstpage
    103
  • Lastpage
    108
  • Abstract
    The frequency of the 3.39 μm He-Ne laser was locked to the CH4saturated absorption line by means of integral-proportional feedback control, i.e., dual feedback control. The frequency modulation was applied by a vibrating mirror placed outside a laser cavity, obtaining a modulation-free laser beam with a stabilized frequency. The long-term stability achieved under integral feedback control was about \\pm1.1 \\times 10^{-11} , which was further improved to \\pm 1.35 \\times 10^{-12} under dual feedback control. The Allan variance measured by the photomixing technique was 1.77 \\times 10^{-12} at an average time 100 s.
  • Keywords
    Feedback systems; Infrared lasers; Laser stability; Noble-gas lasers; Absorption; Fabry-Perot; Feedback control; Frequency modulation; Laser beams; Laser feedback; Laser mode locking; Laser stability; Optical modulation; Spectroscopy;
  • fLanguage
    English
  • Journal_Title
    Quantum Electronics, IEEE Journal of
  • Publisher
    ieee
  • ISSN
    0018-9197
  • Type

    jour

  • DOI
    10.1109/JQE.1981.1070622
  • Filename
    1070622
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1083008