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Updated: Mar 3, 2026

In-situ Tapering of Chalcogenide Fiber for Mid-infrared Supercontinuum Generation
09:39

In-situ Tapering of Chalcogenide Fiber for Mid-infrared Supercontinuum Generation

Published on: May 27, 2013

12.8K

Versatile supercontinuum generation in parabolic multimode optical fibers.

M A Eftekhar, L G Wright, M S Mills

    Optics Express
    |April 26, 2017
    PubMed
    Summary
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    Controlling the input beam profile in multimode optical fibers allows tailoring supercontinuum generation. This method enables versatile pre-engineering of the spectral content for diverse applications.

    Area of Science:

    • Nonlinear optics
    • Photonics
    • Optical fiber communications

    Background:

    • Supercontinuum generation (SCG) in optical fibers is a key phenomenon for various applications.
    • Traditional SCG research often focuses on single-mode fibers, limiting control over spectral properties.
    • Highly multimoded optical fibers offer potential for novel nonlinear dynamics and spectral shaping.

    Purpose of the Study:

    • To investigate the influence of the pump's spatial input profile on supercontinuum generation in highly multimoded optical fibers.
    • To demonstrate the ability to tailor the nonlinear dynamics and spectral content of SCG by controlling input beam characteristics.
    • To explore the potential for pre-engineering the supercontinuum spectrum in a versatile manner.

    Main Methods:

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    Last Updated: Mar 3, 2026

    In-situ Tapering of Chalcogenide Fiber for Mid-infrared Supercontinuum Generation
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    Published on: May 27, 2013

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  • Experimental and numerical simulations were conducted at a 1550 nm wavelength.
  • The modal composition of the input laser beam was systematically varied.
  • The effects on soliton fission, Raman generation, and dispersive wave generation were analyzed.

    • Main Results:

    • The spatial input profile significantly impacts the modal composition of the light within the fiber.
    • Alterations in modal composition were shown to substantially modify the soliton fission process.
    • The generation of Raman and dispersive waves, crucial for SCG, is strongly influenced by the input beam's spatial characteristics.

    Conclusions:

    • The spatial input profile of the pump laser acts as an additional degree of freedom for controlling SCG.
    • It is possible to precisely engineer the spectral content of supercontinuum generated in multimode fibers.
    • This approach offers a versatile method for tailoring SCG for specific applications.