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    Investigating the Performance of a Few-Mode Fiber for Distributed Acoustic Sensing

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    Type
    Article
    Authors
    Mao, Yuan
    Ashry, Islam cc
    Alias, Mohd Sharizal cc
    Ng, Tien Khee cc
    Hveding, Frode
    Arsalan, Muhammad
    Ooi, Boon S. cc
    KAUST Department
    Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
    Electrical Engineering Program
    Photonics Laboratory
    Date
    2019-09-17
    Online Publication Date
    2019-09-17
    Print Publication Date
    2019
    Permanent link to this record
    http://hdl.handle.net/10754/656862
    
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    Abstract
    We experimentally investigated the performance of a distributed acoustic sensor (DAS) designed using a few-mode fiber (FMF), when launching different spatial modes under intentional index perturbation within the fiber. Our demonstration showed that the quasi-single mode (QSM) operated FMF offers higher signal-to-noise ratio (SNR) for the DAS, compared with the case when launching other degenerate higher order modes. Additionally, we compared the behavior of the single-mode fiber (SMF)- and FMF-based DAS when using optical pulses of varying power levels. The FMF enables the realization of a DAS with longer sensing range and higher spatial resolution. The developed FMF-based DAS is further tested via sensing various vibration events produced by piezoelectric transducer (PZT) cylinder, pencil break, and loudspeaker.
    Citation
    Mao, Y., Ashry, I., Alias, M. S., Ng, T. K., Hveding, F., Arsalan, M., & Ooi, B. S. (2019). Investigating the Performance of a Few-Mode Fiber for Distributed Acoustic Sensing. IEEE Photonics Journal, 11(5), 1–10. doi:10.1109/jphot.2019.2940951
    Publisher
    Institute of Electrical and Electronics Engineers (IEEE)
    Journal
    IEEE Photonics Journal
    DOI
    10.1109/jphot.2019.2940951
    Additional Links
    https://ieeexplore.ieee.org/document/8839098/
    ae974a485f413a2113503eed53cd6c53
    10.1109/jphot.2019.2940951
    Scopus Count
    Collections
    Articles; Electrical Engineering Program; Photonics Laboratory; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division

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