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Related Experiment Video

Updated: Mar 15, 2026

In-situ Tapering of Chalcogenide Fiber for Mid-infrared Supercontinuum Generation
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Chalcogenide optical microwires cladded with fluorine-based CYTOP.

Lizhu Li, Nurmemet Abdukerim, Martin Rochette

    Optics Express
    |August 25, 2016
    PubMed
    Summary

    Highly nonlinear optical microwires made of arsenic selenide (As2Se3) cladded with CYTOP demonstrate broadband transparency and mid-infrared nonlinear optical processing capabilities. This advancement offers a promising solution for future optical technologies.

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    Area of Science:

    • Materials Science
    • Optics and Photonics
    • Nonlinear Optics

    Background:

    • Arsenic selenide (As2Se3) is a promising material for nonlinear optics due to its high nonlinearity.
    • Traditional polymer claddings often introduce optical losses and limit transmission in the mid-infrared.
    • Fluorine-based polymers like CYTOP offer potential advantages for optical cladding applications.

    Purpose of the Study:

    • To investigate the optical transmission properties of As2Se3 microwires cladded with CYTOP.
    • To compare the performance of CYTOP-cladded microwires with those cladded with hydrogen-based polymers.
    • To evaluate the nonlinear optical performance of As2Se3-CYTOP microwires for mid-infrared applications.

    Main Methods:

    • Fabrication of As2Se3 optical microwires.
    • Cladding the microwires with CYTOP and hydrogen-based polymers.
    • Optical transmission measurements in the linear regime (1.3 µm to >2.5 µm).
    • Nonlinear optical experiments including four-wave mixing and supercontinuum generation (1.0 µm to >4.3 µm).

    Main Results:

    • CYTOP-cladded As2Se3 microwires exhibit broadband transmission from 1.3 µm up to >2.5 µm without absorption peaks.
    • Hydrogen-based polymer claddings showed significant absorption peaks within this range.
    • Nonlinear regime experiments demonstrated extensive supercontinuum generation spanning 1.0 µm to >4.3 µm.
    • The As2Se3-CYTOP microwires showed high nonlinear performance.

    Conclusions:

    • As2Se3-CYTOP microwires offer broadband transparency in the critical mid-infrared region.
    • The combination of high nonlinearity and transparency makes these microwires suitable for nonlinear optical processing.
    • This material system presents an appealing solution for mid-infrared photonic devices and applications.