Simultaneous distributed acoustic sensing and communication over a two-mode fiber

Juan M. Marin, Islam Ashry*, Omar Alkhazragi, Abderrahmen Trichili, Tien Khee Ng, Boon S. Ooi

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

We designed and tested a distributed acoustic sensing (DAS) that co-exists with optical communication over a two-mode fiber (TMF). In particular, we excited both linearly polarized (LP) modes, LP01 and LP11a, using a photonic lantern for simultaneous information signal transmission while collecting the backscattered Rayleigh light at the near end of the fiber to detect vibrations from a predetermined source. While transmitting data using on–off keying (OOK) or orthogonal frequency-division multiplexing (OFDM) modulation schemes, the optical fiber DAS offers high signal-to-noise ratio (SNR) values that are always larger than the minimum acceptable 2 dB SNR. In addition, as a proof-of-concept experiment, we report parallel sensing and OFDM transmission achieving a data rate of up to 4.2 Gb/s with a bit error rate (BER) of 3.2

Original languageEnglish (US)
Pages (from-to)6321-6324
Number of pages4
JournalOptics Letters
Volume47
Issue number24
DOIs
StatePublished - Dec 15 2022

Bibliographical note

Funding Information:
King Abdullah University of Science and Technology (BAS/1/1614-01-01).

Publisher Copyright:
© 2022 Optica Publishing Group.

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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