Fiber Bragg grating sensors written by femtosecond laser pulses in micro-structured fiber for downhole pressure monitoring

J.-Y Huang, J. Van Roosbroeck, A.B. Martinez, Thomas Geernaert, Francis Berghmans, C. Caucheteur, B. Van Hoe, E. Lindner, J. Vlekken

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

2 Citations (Scopus)

Abstract

In this paper, we demonstrate that femtosecond laser pulse written fiber Bragg gratings (FBGs) fabricated in specialty highly birefringent micro-structured optical fiber (MSF) can be used for high pressure and high temperature monitoring in downhole applications. The design of the micro-structure allows encoding the pressure information into the spectral separation between the two Bragg peaks reflected by the obtained MS-FBG. We obtained a differential pressure sensitivity of 3.30 pm/bar over a pressure range from atmospheric up to 1400 bar and at temperatures between 40 °C and 290 °C. Owing to the negligible differential pressure-temperature cross-sensitivity of 6.06E-3 bar/°C, the proposed MSFBG sensor is an ideal candidate for pressure monitoring in the presence of high temperature transients.

Original languageEnglish
Title of host publication25th International Conference on Optical Fiber Sensors
EditorsLibo Yuan, Youngjoo Chung, Wei Jin, Byoungho Lee, John Canning, Kentaro Nakamura
PublisherSPIE
Number of pages4
Volume10323
ISBN (Electronic)9781510610910
DOIs
Publication statusPublished - 2017
Event25th Optical Fiber Sensors Conference (OFS) - Jeju - South Korea
Duration: 24 Apr 201728 Apr 2017

Publication series

Name2017 25TH INTERNATIONAL CONFERENCE ON OPTICAL FIBER SENSORS (OFS)
ISSN (Print)0277-786X

Conference

Conference25th Optical Fiber Sensors Conference (OFS)
CityJeju - South Korea
Period24/04/1728/04/17

Keywords

  • Femtosecond laser
  • Fiber Bragg grating
  • Hydrostatic pressure
  • Micro-structured fiber
  • Oil and gas

Fingerprint Dive into the research topics of 'Fiber Bragg grating sensors written by femtosecond laser pulses in micro-structured fiber for downhole pressure monitoring'. Together they form a unique fingerprint.

Cite this