In this work, we reported highly reflective polymer optical fiber Bragg gratings (POFBGs) in poly(methyl methacrylate) (PMMA)-based polymer optical fibers (POFs) by means of a 266 nm pulsed laser and phase mask technique. Fiber Bragg gratings (FBGs) were inscribed with a single pulse up to 3.7 mJ. After post-annealing, a stable refractive index change up to 4.2×10-4 was obtained. The behavior may mainly be attributed to the movement of initiating radicals arising from BDK under UV irradiation.


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    Title :

    Bragg grating inscription in BDK-doped PMMA optical fiber using 266 nm pulsed laser


    Contributors:

    Conference:

    European Workshop on Optical Fibre Sensors (EWOFS 2023) ; 2023 ; Mons, Belgium


    Published in:

    Proc. SPIE ; 12643


    Publication date :

    2023-05-23





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English




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