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Fibre Bragg grating sensor interrogation system using a CCD side detection method with superimposed blazed gratings

  • K. Zhou
  • , G. Simpson
  • , Xianfeng Chen
  • , L. Zhang
  • , I. Bennion

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

    Crynodeb

    We present, for the first time to our knowledge, experimental evidence showing that superimposed blazed fiber Bragg gratings may be fabricated and used to extend the dynamic range of a grating-based spectrometer. Blazed gratings of 4/spl deg/ and 8/spl deg/ were superimposed in germanosilicate fiber by ultraviolet inscription and used in conjunction with a coated charged-coupled device array to interrogate a wavelength-division-multiplexing sensor array. We show that the system can be used to monitor strain and temperature sensors simultaneously with an employable bandwidth which is extendable to 70 nm.
    Iaith wreiddiolSaesneg
    Tudalennau (o-i)1549-1551
    CyfnodolynIEEE Photonics Technology Letters
    Cyfrol16
    Rhif cyhoeddi6
    Dynodwyr Gwrthrych Digidol (DOIs)
    StatwsCyhoeddwyd - 24 Mai 2004

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