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Related Experiment Video

Updated: Jun 6, 2026

Fabrication and Testing of Photonic Thermometers
08:44

Fabrication and Testing of Photonic Thermometers

Published on: October 24, 2018

Passive temperature-compensating package for optical fiber gratings.

G W Yoffe, P A Krug, F Ouellette

    Applied Optics
    |November 10, 2010
    PubMed
    Summary

    We developed a compact, passive package to stabilize fiber gratings against temperature changes. This innovation significantly reduces Bragg wavelength variations, improving sensor accuracy in diverse thermal environments.

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    Area of Science:

    • Optics and Photonics
    • Materials Science
    • Sensor Technology

    Background:

    • Fiber gratings are crucial optical components.
    • Their performance is sensitive to temperature fluctuations.
    • Existing compensation methods can be complex or bulky.

    Purpose of the Study:

    • To design and demonstrate a compact, passive temperature-compensating package for fiber gratings.
    • To mitigate the temperature dependence of the Bragg wavelength.
    • To enhance the stability and reliability of fiber grating sensors.

    Main Methods:

    • Mounting a fiber grating under tension within a package.
    • Utilizing two materials with distinct thermal-expansion coefficients.
    • Designing the package to release strain progressively with increasing temperature.

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    Optimized Sealing Process and Real-Time Monitoring of Glass-to-Metal Seal Structures
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    Last Updated: Jun 6, 2026

    Fabrication and Testing of Photonic Thermometers
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    Published on: October 24, 2018

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

    • The compensated package showed a Bragg wavelength variation of only 0.07 nm over a 100 °C range.
    • An uncompensated grating exhibited a variation of 0.92 nm under the same conditions.
    • Demonstrated a compact package (50 mm x 5 mm) for effective compensation.

    Conclusions:

    • The passive package effectively compensates for temperature-induced wavelength shifts in fiber gratings.
    • This technology offers a simple and robust solution for stabilizing optical fiber sensors.
    • The compact design makes it suitable for various applications requiring high thermal stability.