• DocumentCode
    1065973
  • Title

    Direct demodulation of a 10.6µm FM signal with an NH2D stark cell

  • Author

    Abrams, R.L. ; Asawa, C.K.

  • Author_Institution
    Hughes Research Laboratories, Malibu, CA, USA
  • Volume
    12
  • Issue
    10
  • fYear
    1976
  • fDate
    10/1/1976 12:00:00 AM
  • Firstpage
    646
  • Lastpage
    647
  • Abstract
    A new technique for direct demodulation of a 10.6-μm FM signal using a Stark absorption cell is described. A Stark tunable absorption line in NH2D is used to track the time-varying frequency of the incoming FM laser signal using a closed servo loop. The demodulated FM signal is proportional to the feedback voltage applied to the Stark cell. Demodulation at frequencies up to 5 kHz has been demonstrated, the rate being limited only by the bandwidth of the available servo electronics.
  • Keywords
    Demodulation; Frequency modulation; Nonlinear optics; Optical feedback; Optical interferometry; Optical mixing; Optical refraction; Optical scattering; Optical variables control; Refractive index;
  • fLanguage
    English
  • Journal_Title
    Quantum Electronics, IEEE Journal of
  • Publisher
    ieee
  • ISSN
    0018-9197
  • Type

    jour

  • DOI
    10.1109/JQE.1976.1069052
  • Filename
    1069052
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1065973