In this letter, we present a novel sensor approach allowing fast measurement of temperature. It consists of a chirped fibre Bragg grating (CFBG) and an extrinsic Fabry-Perot interferometric sensor (EFPI) in series. Both EFPI and CFBG are well integrated to provide local strain and temperature information respectively, using wavelength-division-multiplexed (WDM) technique. As the wavelength-shift of the CFBG is detected via intensity variation, the speed for temperature measurement can be very high (<0.1 ms). Also, there is little cross-talk between the CFBG and the EFPI due to the introduction of WDM.


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    Title :

    Temperature-strain discrimination using a wavelength-division-multiplexed chirped in-fibre-Bragg-grating/extrinsic Fabry-Perot sensor system


    Contributors:
    Rao, Y.J. (author) / Zeng, X.K. (author) / Wang, Y.P. (author) / Zhu, T. (author) / Ran, Z.L. (author) / Zhang, L. (author) / Bennion, I. (author)


    Publication date :

    2002-01-01


    Size :

    294496 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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