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Temperature-compensated distributed hydrostatic pressure Brillouin sensor using a thin-diameter and polarizationmaintaining photonics crystal fiber

  • Lei Teng
  • , Yongkang Dong
  • , Deng Wang Zhou*
  • , Taofei Jiang
  • *Corresponding author for this work
  • Harbin Institute of Technology

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

Abstract

In this work, a distributed hydrostatic pressure sensor based on Brillouin dynamic gratings (BDGs) was proposed and demonstrated for the first time to the best of our knowledge. The hydrostatic pressure sensing is realized through measuring the pressure-induced birefringence changes through exciting and probing the BDGs; while the temperature can be compensated by measuring the temperature-induced Brillouin frequency shift (BFS) through differential pulsewidth pair Brillouin optical time-domain analysis (DPP-BOTDA). The thin-diameter highbirefringent PM-PCF is used as the fiber under test and its porous-structure cladding is liable to be deformed exhibiting a high sensitivity to pressure. A distributed measurement with a 20-cm spatial resolution and a measurement accuracy as high as 0.025 MPa is reported.

Original languageEnglish
Title of host publicationAsia-Pacific Optical Sensors Conference, APOS 2016
PublisherOptica Publishing Group (formerly OSA)
ISBN (Print)9780960038053
DOIs
StatePublished - 2016
EventAsia-Pacific Optical Sensors Conference, APOS 2016 - Shanghai, China
Duration: 11 Oct 201614 Oct 2016

Publication series

NameOptics InfoBase Conference Papers
ISSN (Electronic)2162-2701

Conference

ConferenceAsia-Pacific Optical Sensors Conference, APOS 2016
Country/TerritoryChina
CityShanghai
Period11/10/1614/10/16

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