Two high resolution optical-fiber system for the distributed measurement of strain or temperature have been investigated. The first is a fully distributed system, based on a high spatial resolution POTDR which benefits from photon-counting detection, with a spatial resolution of 50mm. The second is a novel quasi-distributed system which uses coherent coupling of backscattered light in a high birefringence fiber, and also uses photon counting detection.


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    Title :

    High-spatial-resolution distributed optical fiber strain or temperature sensing



    Conference:

    Fiber Optic and Laser Sensors and Applications; Including Distributed and Multiplexed Fiber Optic Sensors VII ; 1998 ; Boston,MA,USA


    Published in:

    Publication date :

    1999-02-03





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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