• DocumentCode
    3111894
  • Title

    Bragg grating optical time domain reflectrometry using fast GaAs switches as a demultiplexing system

  • Author

    Kemp, J. ; Ning, Y.N. ; Carty, F. ; Palmer, A.W. ; Grattan, K.T.V. ; Meldrum, A. ; Li, L.

  • Author_Institution
    Dept. of Electr. Electron. & Inf. Eng., City Univ., London, UK
  • fYear
    1997
  • fDate
    35468
  • Firstpage
    42552
  • Lastpage
    42557
  • Abstract
    A fibre Bragg grating sensor system capable of demultiplexing eight gratings with a spatial resolution of less than 3 m has been shown. Using an interferometric phase shift analysis a higher sensitivity is possible compared with some WDM approaches. The system is expandable to accommodate a larger number of grating and improved spatial resolutions should be possible
  • Keywords
    fibre optic sensors; GaAs; WDM; binary tree arrangement; demultiplexing system; fast GaAs MMIC switches; fibre Bragg grating sensor system; high sensitivity; interferometric phase shift analysis; modulated unbalanced interferometer; optical path difference; optical time domain reflectrometry; phase modulation; sine wave reconstruction; spatial resolution; strain sensors;
  • fLanguage
    English
  • Publisher
    iet
  • Conference_Titel
    Optical Fibre Gratings (Digest No. 1997/037), IEE Colloquium on
  • Conference_Location
    London
  • Type

    conf

  • DOI
    10.1049/ic:19970241
  • Filename
    600693
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=3111894