• DocumentCode
    1141266
  • Title

    Doppler-effect mechanism for laser Q switching with a rotating mirror

  • Author

    Kafri, O. ; Speiser, Shammai ; Kimel, Sol

  • Author_Institution
    Israel Institute of Technology, Haifa, Israel
  • Volume
    7
  • Issue
    3
  • fYear
    1971
  • fDate
    3/1/1971 12:00:00 AM
  • Firstpage
    122
  • Lastpage
    126
  • Abstract
    A novel description, based on the Doppler effect, is given for laser Q switching by a rotating mirror. Fourier analysis yields a relation between the width of the pulse \\Delta t_{1/2} and the angular velocity of the mirror \\dot{\\theta} . It is shown that for laser emission having a Gaussian spatial amplitude profile the temporal shape of a Q -switched pulse is also Gaussian. It is predicted that for different lasers Q switched by mirrors rotating with the same \\dot{\\theta}, \\Delta t_{1/2} will depend on the wavelength of the laser. For a ruby laser, measurements are reported of \\Delta t_{1/2} versus \\dot{\\theta} for different configurations of the cavity into which vertical and horizontal slits were introduced.
  • Keywords
    Angular velocity; Chemical lasers; Doppler effect; Laser modes; Laser theory; Mirrors; Optical pulse generation; Optical pulses; Pump lasers; Space vector pulse width modulation;
  • fLanguage
    English
  • Journal_Title
    Quantum Electronics, IEEE Journal of
  • Publisher
    ieee
  • ISSN
    0018-9197
  • Type

    jour

  • DOI
    10.1109/JQE.1971.1076608
  • Filename
    1076608