Investigating the Performance of a Few-Mode Fiber for Distributed Acoustic Sensing
Type
ArticleAuthors
Mao, YuanAshry, Islam

Alias, Mohd Sharizal

Ng, Tien Khee

Hveding, Frode
Arsalan, Muhammad
Ooi, Boon S.

KAUST Department
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) DivisionElectrical Engineering Program
Photonics Laboratory
Date
2019-09-17Online Publication Date
2019-09-17Print Publication Date
2019Permanent link to this record
http://hdl.handle.net/10754/656862
Metadata
Show full item recordAbstract
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.2019.2940951Journal
IEEE Photonics JournalAdditional Links
https://ieeexplore.ieee.org/document/8839098/ae974a485f413a2113503eed53cd6c53
10.1109/jphot.2019.2940951