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Related Experiment Video

Updated: Jun 20, 2026

A Silicon-tipped Fiber-optic Sensing Platform with High Resolution and Fast Response
09:03

A Silicon-tipped Fiber-optic Sensing Platform with High Resolution and Fast Response

Published on: January 7, 2019

Simple fiber-optic low-temperature sensor that uses microbending loss.

O Lumholt, A Bjarklev, S Dahl-Petersen

    Optics Letters
    |September 25, 2009
    PubMed
    Summary

    A novel fiber-optic temperature sensor utilizes microbending loss for precise measurements. This sensor demonstrates high sensitivity and linearity across a broad temperature range, offering tunable performance via signal wavelength selection.

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    Area of Science:

    • Optoelectronics
    • Materials Science
    • Sensor Technology

    Background:

    • Fiber-optic sensors offer advantages in harsh environments.
    • Microbending loss is a known phenomenon sensitive to external perturbations.
    • Precise temperature sensing is crucial in various scientific and industrial applications.

    Purpose of the Study:

    • To develop a simple and effective fiber-optic temperature sensor.
    • To investigate the use of microbending loss for temperature sensing.
    • To evaluate the sensor's performance characteristics, including sensitivity and linearity.

    Main Methods:

    • Construction of a fiber-optic sensor based on temperature-induced microbending.
    • Testing the sensor's response over a wide temperature range (20–180 K).

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    Last Updated: Jun 20, 2026

    A Silicon-tipped Fiber-optic Sensing Platform with High Resolution and Fast Response
    09:03

    A Silicon-tipped Fiber-optic Sensing Platform with High Resolution and Fast Response

    Published on: January 7, 2019

    Fiber Optic Distributed Sensors for High-resolution Temperature Field Mapping
    09:48

    Fiber Optic Distributed Sensors for High-resolution Temperature Field Mapping

    Published on: November 7, 2016

    A Random-displacement Measurement by Combining a Magnetic Scale and Two Fiber Bragg Gratings
    08:23

    A Random-displacement Measurement by Combining a Magnetic Scale and Two Fiber Bragg Gratings

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  • Analysis of signal wavelength effects on sensor sensitivity and stability.

    • Main Results:

    • The developed sensor exhibits high sensitivity to temperature changes.
    • A strict linear response was observed across the tested temperature range.
    • Signal wavelength selection allows for tuning sensor sensitivity or wavelength-independence.

    Conclusions:

    • A functional fiber-optic temperature sensor using microbending loss has been successfully demonstrated.
    • The sensor offers a linear and sensitive measurement capability for cryogenic temperatures.
    • Wavelength selection provides a method to optimize sensor performance for specific applications.