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Related Experiment Video

Updated: Jun 25, 2026

Writing Bragg Gratings in Multicore Fibers
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Writing Bragg Gratings in Multicore Fibers

Published on: April 20, 2016

Thermo-optically tuned parametric wavelength conversion in integrated Bragg gratings.

X Wang, J W Choi, G F R Chen

    Optics Express
    |February 20, 2026
    PubMed
    Summary

    Integrated Bragg gratings enable dynamic control of nonlinear optics. Thermo-optic tuning enhances parametric wavelength conversion and offers reconfigurable nonlinear photonic devices.

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    Area of Science:

    • Photonics and nonlinear optics.
    • Integrated optics and device engineering.

    Background:

    • Nonlinear optical processes are crucial for integrated photonic devices.
    • Achieving efficient and tunable nonlinear effects on-chip remains a challenge.

    Purpose of the Study:

    • To demonstrate thermo-optic tuning of parametric wavelength conversion in integrated Bragg gratings.
    • To leverage Bragg grating dispersion for enhanced four-wave mixing efficiency.
    • To establish a reconfigurable platform for actively tunable nonlinear photonic devices.

    Main Methods:

    • Fabrication and characterization of integrated Bragg gratings.
    • Utilizing sharp dispersion near the photonic stopband for phase matching.
    • Implementing continuous-wave four-wave mixing experiments.

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    Last Updated: Jun 25, 2026

    Writing Bragg Gratings in Multicore Fibers
    08:48

    Writing Bragg Gratings in Multicore Fibers

    Published on: April 20, 2016

    Fabrication and Testing of Photonic Thermometers
    08:44

    Fabrication and Testing of Photonic Thermometers

    Published on: October 24, 2018

    Infrared Degenerate Four-wave Mixing with Upconversion Detection for Quantitative Gas Sensing
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    Infrared Degenerate Four-wave Mixing with Upconversion Detection for Quantitative Gas Sensing

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  • Applying thermal tuning to modulate conversion efficiency and spectral response.

    • Main Results:

    • Achieved a 20 dB enhancement in on/off conversion efficiency for four-wave mixing compared to uniform waveguides.
    • Demonstrated up to 5 dB modulation in conversion efficiency via thermal tuning (25°C to 75°C).
    • Observed a 5 nm spectral shift in the stopband with temperature changes, indicating dynamic control.

    Conclusions:

    • Integrated Bragg gratings provide a powerful platform for enhanced nonlinear optical processes.
    • Thermo-optic tuning offers dynamic control over parametric wavelength conversion on-chip.
    • This approach enables the development of reconfigurable and actively tunable nonlinear photonic devices.