Optimization of multicore fiber for high-temperature sensing

    Authors

    A. Van Newkirk; E. Antonio-Lopez; G. Salceda-Delgado; R. Amezcua-Correa;A. Schulzgen

    Comments

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    Abbreviated Journal Title

    Opt. Lett.

    Keywords

    PHOTONIC-CRYSTAL FIBERS; SENSOR; INTERFEROMETER; INTERFERENCE; CURVATURE; STRAIN; Optics

    Abstract

    We demonstrate a novel high-temperature sensor using multicore fiber (MCF) spliced between two single-mode fibers. Launching light into such fiber chains creates a supermode interference pattern in the MCF that translates into a periodic modulation in the transmission spectrum. The spectrum shifts with changes in temperature and can be easily monitored in real time. This device is simple to fabricate and has been experimentally shown to operate at temperatures up to 1000 degrees C in a very stable manner. Through simulation, we have optimized the multicore fiber design for sharp spectral features and high overall transmission in the optical communications window. Comparison between the experiment and the simulation has also allowed determination of the thermo-optic coefficient of the MCF as a function of temperature. (C) 2014 Optical Society of America

    Journal Title

    Optics Letters

    Volume

    39

    Issue/Number

    16

    Publication Date

    1-1-2014

    Document Type

    Article

    Language

    English

    First Page

    4812

    Last Page

    4815

    WOS Identifier

    WOS:000341099400046

    ISSN

    0146-9592

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