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Writing Bragg Gratings in Multicore Fibers
08:48

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Published on: April 20, 2016

Distributed fiber filter based on index-matched coupling between core and cladding.

John M Fini, Ryan T Bise, Man F Yan

    Optics Express
    |June 9, 2009
    PubMed
    Summary
    This summary is machine-generated.

    A novel fiber design enables distributed filtering by achieving resonant coupling between the core and cladding. This new fiber optic technology demonstrates effective filtering near 1100nm.

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    Area of Science:

    • Optics and Photonics
    • Materials Science

    Background:

    • Distributed filtering is crucial for optical signal processing.
    • Existing fiber technologies face limitations in achieving precise wavelength selectivity.
    • Resonant coupling offers a potential mechanism for enhanced filtering.

    Purpose of the Study:

    • To propose and demonstrate a new fiber design for distributed filtering.
    • To achieve resonant coupling between the fiber core and cladding at specific wavelengths.
    • To validate the design through simulations and experimental fabrication.

    Main Methods:

    • Theoretical design of a novel fiber structure.
    • Electromagnetic simulations to predict resonant coupling behavior.
    • Fiber fabrication based on the design principles.
    • Experimental characterization using transmission spectra and mode imaging.

    Main Results:

    • Simulations confirmed the feasibility of resonant coupling at desired wavelengths.
    • A filter fiber was successfully fabricated.
    • Experimental results validated resonant coupling between core and cladding near 1100nm.

    Conclusions:

    • The proposed fiber design enables effective distributed filtering.
    • Resonant core-cladding coupling is a viable strategy for wavelength-selective optical filters.
    • This technology has potential applications in optical communications and sensing.