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Automation of Mode Locking in a Nonlinear Polarization Rotation Fiber Laser through Output Polarization Measurements
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Published on: February 28, 2016

Distributed pressure sensor with a mode-locked fiber-ring laser.

S Yamashita, K Hotate

    Optics Letters
    |November 28, 2007
    PubMed
    Summary

    We developed a new fiber-laser sensor to detect pressure. This innovative distributed fiber-laser pressure sensor achieves 54 cm resolution over 150 meters using a novel mode-locking technique.

    Area of Science:

    • Physics
    • Optical Engineering
    • Sensor Technology

    Background:

    • Distributed fiber-optic sensors are crucial for real-time monitoring.
    • Existing methods face limitations in spatial resolution and stability.
    • Intracavity mode coupling in fiber lasers offers potential for sensing applications.

    Purpose of the Study:

    • To propose and demonstrate a novel distributed fiber-laser pressure sensor.
    • To enhance the stability and spatial resolution of fiber-laser based sensing.
    • To investigate the impact of mode coupling and mode-locking on pressure sensing.

    Main Methods:

    • Utilizing a polarization-maintaining fiber laser with intracavity mode coupling.
    • Measuring the free-spectral range shift induced by transverse pressure.

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    Fiber Optic Distributed Sensors for High-resolution Temperature Field Mapping
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    Published on: November 7, 2016

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    Automation of Mode Locking in a Nonlinear Polarization Rotation Fiber Laser through Output Polarization Measurements
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    Automation of Mode Locking in a Nonlinear Polarization Rotation Fiber Laser through Output Polarization Measurements

    Published on: February 28, 2016

    Low-cost Custom Fabrication and Mode-locked Operation of an All-normal-dispersion Femtosecond Fiber Laser for Multiphoton Microscopy
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    Fiber Optic Distributed Sensors for High-resolution Temperature Field Mapping

    Published on: November 7, 2016

  • Implementing a novel mode-locking technique to improve sensor performance.

    • Main Results:

    • Successfully demonstrated a distributed fiber-laser pressure sensor.
    • Achieved a spatial resolution of 54 cm within a 150-m sensing range.
    • Showcased significant enhancements in sensor stability and spatial resolution.

    Conclusions:

    • The proposed distributed fiber-laser pressure sensor is effective for precise pressure localization.
    • The novel mode-locking technique drastically improves sensor stability and resolution.
    • This technology offers a promising solution for high-resolution distributed sensing applications.