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Related Experiment Video

Updated: Dec 14, 2025

In-situ Tapering of Chalcogenide Fiber for Mid-infrared Supercontinuum Generation
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Supercontinuum generation in a chalcogenide all-solid hybrid microstructured optical fiber.

Hoa Phuoc Trung Nguyen, Tong Hoang Tuan, Luo Xing

    Optics Express
    |July 19, 2020
    PubMed
    Summary

    Researchers developed a novel chalcogenide all-solid hybrid microstructured optical fiber for supercontinuum generation. This fiber enables broad, coherent supercontinuum generation with a flattened chromatic dispersion, achieving a spectrum from 2.2 to 10 μm.

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    Area of Science:

    • Materials Science
    • Photonics
    • Optical Engineering

    Background:

    • Microstructured optical fibers (MOFs) are crucial for nonlinear optical applications.
    • Chalcogenide glasses offer unique nonlinear properties for mid-infrared applications.
    • Supercontinuum (SC) generation requires fibers with specific chromatic dispersion characteristics.

    Purpose of the Study:

    • To fabricate and characterize a novel chalcogenide all-solid hybrid microstructured optical fiber.
    • To investigate the potential of this fiber for supercontinuum generation.
    • To achieve broad and coherent SC generation with flattened chromatic dispersion.

    Main Methods:

    • Fabrication of a chalcogenide all-solid hybrid microstructured optical fiber.
    • Characterization of the fiber's chromatic dispersion properties.
    • Pumping the fiber with a femtosecond laser at 3, 4, and 5 μm.
    • Analysis of the generated supercontinuum spectra.

    Main Results:

    • The fabricated fiber exhibited all-normal and flattened chromatic dispersion.
    • Broad supercontinua were generated by pumping at 3, 4, and 5 μm.
    • The broadest SC spectrum, spanning 2.2 to 10 μm at -20 dB, was achieved at 5 μm pumping.
    • Good spectral flatness was observed in the generated supercontinua.

    Conclusions:

    • The chalcogenide all-solid hybrid MOF is suitable for supercontinuum generation.
    • The fiber's dispersion properties facilitate broad and coherent SC generation.
    • This technology holds promise for applications requiring broadband light sources in the mid-infrared spectrum.