Sensing range improvement of brillouin optical time domain reflectometry (BOTDR) using inline erbium-doped fibre amplifier

N. Lalam, Wai Pang Ng, X. Dai, Q. Wu, Y. Q. Fu

    Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

    9 Citations (Scopus)

    Abstract

    In this paper, we demonstrate sensing range improvement of Brillouin optical time-domain reflectometry (BOTDR) using an inline erbium-doped fibre amplifier to compensate the sensing fibre loss. In addition, a passive depolarizer is used based on the polarization beam splitter to suppress the polarization noise. The proof-of-concept is demonstrated experimentally using a 50 km sensing fibre with a 5 m spatial resolution. The strain and temperature errors at end of the sensing fibre are 23 μϵ and 1.08°C, respectively.

    Original languageEnglish
    Title of host publication2017 IEEE SENSORS - Conference Proceedings
    PublisherIEEE
    Number of pages3
    Volume2017-December
    ISBN (Electronic)9781509010127
    ISBN (Print)9781509010134
    DOIs
    Publication statusPublished - 21 Dec 2017
    Event16th IEEE SENSORS Conference, ICSENS 2017 - Glasgow, United Kingdom
    Duration: 30 Oct 20171 Nov 2017

    Conference

    Conference16th IEEE SENSORS Conference, ICSENS 2017
    Country/TerritoryUnited Kingdom
    CityGlasgow
    Period30/10/171/11/17

    Keywords

    • BOTDR
    • Brillouin scattering
    • Distributed fibre sensors
    • inline EDFA

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