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Related Experiment Video

Updated: May 1, 2026

Writing Bragg Gratings in Multicore Fibers
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Silicon graphene Bragg gratings.

José Capmany, David Domenech, Pascual Muñoz

    Optics Express
    |March 26, 2014
    PubMed
    Summary

    We demonstrate tunable Bragg gratings using interleaved graphene on silicon waveguides. Adjusting graphene

    Area of Science:

    • Photonics and Materials Science
    • Nanotechnology and Optoelectronics

    Background:

    • Silicon photonics offers a robust platform for integrated optical devices.
    • Tunable optical filters are crucial components in various photonic systems.
    • Graphene's unique electronic properties present opportunities for novel optical modulation.

    Purpose of the Study:

    • To propose and investigate a novel method for creating tunable Bragg gratings.
    • To leverage interleaved graphene sections on silicon waveguides for wavelength and bandwidth control.
    • To explore apodization techniques for refining grating performance.

    Main Methods:

    • Integration of interleaved graphene sections onto a silicon waveguide.
    • Modulation of graphene's chemical potential to tune filter characteristics.

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  • Implementation and analysis of apodization strategies for grating profiles.

    • Main Results:

    • Demonstration of Bragg gratings with tunable central wavelength.
    • Control over the filter bandwidth achieved by altering graphene's chemical potential.
    • Successful application of apodization techniques to shape the grating response.

    Conclusions:

    • Interleaved graphene on silicon waveguides provide an effective platform for tunable Bragg gratings.
    • The proposed method offers precise control over optical filter parameters.
    • This approach holds promise for advanced integrated photonic applications.