Frequency distortion suppressed phase-sensitive OFDR by using dual-wavelength digitally enhanced interferometry

Congfan Wang, Weilin Xie*, Jun Xue, Qiang Yang, Bowen Li, Xiang Zheng, Xin Li, Sijing Yang, Wei Wei, Yi Dong

*Corresponding author for this work

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

Abstract

We report on a phase-sensitive optical frequency domain reflectometry that allows for frequency distortion suppression in distributed sensing by_ using dual-wavelength digitally enhanced interferometry. Preserved sensing performance for a strain precision of 0.1 με/√Hz with a sensing spatial resolution of 1.25 m along 4.6 km has been verified in the presence of both environmental and artificially induced frequency distortions, testifying the effective frequency distortion suppression.

Original languageEnglish
Title of host publication29th International Conference on Optical Fiber Sensors
EditorsJose Luis Santos, Manuel Lopez-Amo Sainz, Tong Sun
PublisherSPIE
ISBN (Electronic)9781510691872
DOIs
Publication statusPublished - 2025
Externally publishedYes
Event29th International Conference on Optical Fiber Sensors - Porto, Portugal
Duration: 25 May 202530 May 2025

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume13639
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

Conference29th International Conference on Optical Fiber Sensors
Country/TerritoryPortugal
CityPorto
Period25/05/2530/05/25

Keywords

  • distributed fiber-optic sensing
  • dual-wavelength digitally enhanced interferometry
  • frequency distortion
  • optical frequency domain reflectometry
  • phase-sensitive optical frequency domain reflectometry

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