Proposal and demonstration of high spatial resolution BOTDR by correlating signals sampled with narrow-and wide-width window functions

Ryutaro Shibata, Hirofumi Kasahara, Tsuneo Horiguchi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

We propose a novel BOTDR based on cross-correlation analysis of backscattered Brillouin signals that are sampled with two types of window functions in different lengths. The new BOTDR concurrently achieves high spatial resolution and measurements of Brillouin backscattered signal spectra having narrow-width, allowing accurate measurement of distributed Brillouin frequency shift with cm-order spatial resolution. Data processing methods based on a frequency sweep technique and Fast Fourier Transform analysis (FFT) are described. Experiments using FFT verify the performance in the spatial resolution of as short as 20 cm.

Original languageEnglish
Title of host publication2016 IEEE 6th International Conference on Photonics, ICP 2016
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781467381536
DOIs
Publication statusPublished - 2016 Jul 12
Event6th IEEE International Conference on Photonics, ICP 2016 - Kuching, Sarawak, Malaysia
Duration: 2016 Mar 142016 Mar 17

Other

Other6th IEEE International Conference on Photonics, ICP 2016
CountryMalaysia
CityKuching, Sarawak
Period16/3/1416/3/17

Keywords

  • BOTDR
  • distributed fiber sensor
  • spontaneous Brillouin scattering

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Computer Networks and Communications

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    Shibata, R., Kasahara, H., & Horiguchi, T. (2016). Proposal and demonstration of high spatial resolution BOTDR by correlating signals sampled with narrow-and wide-width window functions. In 2016 IEEE 6th International Conference on Photonics, ICP 2016 [7510028] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICP.2016.7510028