Multichannel fiber Bragg grating for temperature field monitoring

Adenowo Gbadebo, Elena Turitsyna, John A Williams, Lin Zhang, Y. Sun, W. Zhang, Zhijun Yan, Q. Sun, D Liu

Research output: Contribution to journalArticle

Abstract

We demonstrate a multichannel fiber Bragg grating (MC-FBG) based distributed temperature field sensor with millimeter-order spatial resolution. The MC-FBG was designed by using the layer peeling (LP) algorithm with a tailored group delay characteristic and fabricated using seamless UV-inscription. We have achieved a 21-channel MC-FBG with 0.2 nm bandwidth of each channel and 0.5 nm channel gap. The sensor was tested by using a temperature field distribution. Experimental results show that the sensor had a spatial resolution of 3 mm and could measure a maximum temperature gradient of 7.85 °C/mm.
Original languageEnglish
Pages (from-to)461-469
Number of pages9
JournalOptics Express
Volume27
Issue number2
Early online date7 Jan 2019
DOIs
Publication statusPublished - 7 Jan 2019

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Bragg gratings
temperature distribution
fibers
sensors
spatial resolution
peeling
temperature gradients
bandwidth

Bibliographical note

© 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

Keywords

  • Fibre Bragg grating
  • sensing temperature
  • sensor grating

Cite this

Gbadebo, Adenowo ; Turitsyna, Elena ; Williams, John A ; Zhang, Lin ; Sun, Y. ; Zhang, W. ; Yan, Zhijun ; Sun, Q. ; Liu, D. / Multichannel fiber Bragg grating for temperature field monitoring. In: Optics Express. 2019 ; Vol. 27, No. 2. pp. 461-469.
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Multichannel fiber Bragg grating for temperature field monitoring. / Gbadebo, Adenowo; Turitsyna, Elena; Williams, John A; Zhang, Lin; Sun, Y.; Zhang, W.; Yan, Zhijun; Sun, Q.; Liu, D.

In: Optics Express, Vol. 27, No. 2, 07.01.2019, p. 461-469.

Research output: Contribution to journalArticle

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AU - Yan, Zhijun

AU - Sun, Q.

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