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    Quasi-single mode operated few-mode fiber for distributed acoustic sensing

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    Name:
    Quasi-Single Mode Operated Few-Mode Fiber for Distributed Acoustic Sensing.pdf
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    1.142Mb
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    PDF
    Description:
    Accepted manuscript
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    Type
    Conference Paper
    Authors
    Ashry, Islam cc
    Mao, Yuan
    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
    KAUST Grant Number
    BAS/1/1614-01-01
    GEN/1/6607-01-01
    KCR/1/2081-01-01
    Date
    2019-11-21
    Permanent link to this record
    http://hdl.handle.net/10754/661887
    
    Metadata
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    Abstract
    We experimentally report a proof-of-concept demonstration of a few-mode fiber (FMF) based distributed acoustic sensor (DAS) design, aiming at upgrading the capabilities of the typical DAS that employs the standard single mode fiber (SMF). We only excite the fundamental mode at the input port of the FMF, and further, we minimize the impact of intermodal coupling within it such that the FMF operates in a quasi-single mode (QSM) state. The QSM operated FMF keeps the basic operation principle of the DAS valid and, in comparison with the standard SMF, it allows injection of higher pump peak-power before reaching the threshold power of nonlinearity. We validate our design by sensing vibration events produced by a piezoelectric transducer (PZT) cylinder. The FMF based DAS successfully figures out the locations and frequencies of these events. This reported design would enable the realization of a DAS design with longer sensing range and higher spatial resolution, in comparison to the standard SMF based DAS.
    Citation
    Ashry, I., Mao, Y., Ng, T. K., Hveding, F., Arsalan, M., & Ooi, B. S. (2019). Quasi-single mode operated few-mode fiber for distributed acoustic sensing. Advanced Sensor Systems and Applications IX. doi:10.1117/12.2537830
    Sponsors
    The authors gratefully acknowledge the financial support provided to this work by the Saudi Aramco under Grant No. RGC/3/3138-01. This work is partially supported by King Abdullah University of Science and Technology (KAUST) baseline funding (BAS/1/1614-01-01), KAUST equipment funding KCR/1/2081-01-01, and GEN/1/6607-01-01.
    Publisher
    SPIE-Intl Soc Optical Eng
    Conference/Event name
    Advanced Sensor Systems and Applications IX 2019
    DOI
    10.1117/12.2537830
    Additional Links
    https://www.spiedigitallibrary.org/conference-proceedings-of-spie/11191/2537830/Quasi-single-mode-operated-few-mode-fiber-for-distributed-acoustic/10.1117/12.2537830.full
    ae974a485f413a2113503eed53cd6c53
    10.1117/12.2537830
    Scopus Count
    Collections
    Conference Papers; Electrical and Computer Engineering Program; Photonics Laboratory; Computer, Electrical and Mathematical Science and Engineering (CEMSE) Division

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