A fiber optic sensor system capable of detecting the strain distribution in a long length of optical fiber containing a series of fiber Bragg gratings is described. The technique utilizes RF sub-carrier based determination of the optical propagation time between the grating elements, and wavelength division-based addressing of the individual FBGs in the system. The approach will have applications in structural strain monitoring where long gage length sensing is required at multiple locations.


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    Title :

    Subcarrier-based path-integrating strain sensor array utilizing fiber Bragg gratings


    Contributors:

    Conference:

    Distributed and Multiplexed Fiber Optic Sensors IV ; 1994 ; San Diego,CA,United States


    Published in:

    Publication date :

    1994-09-21





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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