Summary form only given. The Bragg reflection characteristics of a fiber grating, including intensity and phase, are controlled by its longitudinal refractive-index distribution, i.e., the local grating period and the depth of effective index modulation. Therefore, the retrieval of the longitudinal index distribution is crucially important for controlling the characteristics of a fiber grating. We report our results of reconstructing the index distributions of a uniform and an apodized chirped fiber grating. The procedures include the measurements of their complex Bragg reflection spectra with a balanced Michelson interferometer and the execution of a simple retrieving algorithm. With the procedures, we can retrieve index profiles of fiber gratings with any apodization, chirping or DC structures.


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    Title :

    Retrieval of the refractive-index distributions of fiber gratings with complex Bragg reflection measurements


    Contributors:


    Publication date :

    1999-01-01


    Size :

    365663 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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