TY - JOUR
T1 - Investigating the Performance of a Few-Mode Fiber for Distributed Acoustic Sensing
AU - Mao, Yuan
AU - Ashry, Islam
AU - Alias, Mohd Sharizal
AU - Ng, Tien Khee
AU - Hveding, Frode
AU - Arsalan, Muhammad
AU - Ooi, Boon S.
N1 - KAUST Repository Item: Exported on 2020-10-01
PY - 2019/9/17
Y1 - 2019/9/17
N2 - 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.
AB - 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.
UR - http://hdl.handle.net/10754/656862
UR - https://ieeexplore.ieee.org/document/8839098/
UR - http://www.scopus.com/inward/record.url?scp=85077736801&partnerID=8YFLogxK
U2 - 10.1109/jphot.2019.2940951
DO - 10.1109/jphot.2019.2940951
M3 - Article
SN - 1943-0655
VL - 11
SP - 1
EP - 10
JO - IEEE Photonics Journal
JF - IEEE Photonics Journal
IS - 5
ER -