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Real time interrogation technique for fiber Bragg grating enhanced fiber loop ringdown sensors array.

Yunlong Zhang, Ruoming Li, Yuechun Shi

    Optics Express
    |June 16, 2015
    PubMed
    Summary
    This summary is machine-generated.

    A new fiber loop ringdown (FLRD) sensor array with wavelength-time multiplexing allows real-time monitoring of multiple sensors. This novel system achieves a high interrogation frequency of 125.5 Hz for efficient data acquisition.

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    Area of Science:

    • Optoelectronics
    • Fiber Optic Sensors
    • Photonics

    Background:

    • Fiber optic sensors offer advantages in harsh environments.
    • Multiplexing techniques are crucial for scalable sensor networks.
    • Fiber loop ringdown (FLRD) sensors provide high sensitivity.

    Purpose of the Study:

    • To propose a novel fiber Bragg grating aided fiber loop ringdown (FLRD) sensor array.
    • To develop a wavelength-time multiplexing based interrogation technique for FLRD sensor arrays.
    • To analyze system parameters and demonstrate real-time monitoring capabilities.

    Main Methods:

    • Design and fabrication of a fiber Bragg grating aided FLRD sensor array.
    • Formulation of the interrogation frequency for the proposed system.
    • Experimental demonstration of a five-element FLRD sensor array.
    • Analysis of interrelationships among system parameters.

    Main Results:

    • Successful demonstration of a five-element FLRD sensor array.
    • Real-time monitoring capability for each FLRD element was achieved.
    • The system demonstrated an interrogation frequency of 125.5 Hz.
    • Analysis provided insights into system parameter interrelationships.

    Conclusions:

    • The proposed FLRD sensor array and interrogation technique are effective for real-time monitoring.
    • The wavelength-time multiplexing approach enables efficient data acquisition from multiple sensors.
    • The system's performance validates its potential for various sensing applications.