Highly photosensitive polymethyl methacrylate microstructured polymer optical fiber with doped core

D. Sáez-Rodríguez, Kristian Nielsen, Henrik K. Rasmussen, Ole Bang, D. J. Webb

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    Abstract

    In this Letter, we report the fabrication of a highly photosensitive, microstructured polymer optical fiber using benzyl dimethyl ketal as a dopant, as well as the inscription of a fiber Bragg grating in the fiber. A refractive index change in the core of at least 3.2×10−4 has been achieved, providing a grating with a strong transmission rejection of −23  dB with an inscription time of only 13 min. The fabrication method has a big advantage compared to doping step index fiber since it enables doping of the fiber without using extra dopants to compensate for the index reduction in the core introduced by the photosensitive agent.

    Original languageEnglish
    JournalOptics Letters
    Volume38
    Issue number19
    Pages (from-to)3769-3772
    ISSN0146-9592
    DOIs
    Publication statusPublished - 2013

    Bibliographical note

    This paper was published in Optics Letters and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://www.opticsinfobase.org/ol/abstract.cfm?uri=ol-38-19-3769. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.

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