Simultaneous distributed strain and temperature measurement using a dual-Brillouin-peak optical fiber

Xiaoguang Sun; Kyle Bedard; Michael Hines; Jie Li; Robert Dyer

doi:10.1117/12.2518523

14 May 2019 Simultaneous distributed strain and temperature measurement using a dual-Brillouin-peak optical fiber

Xiaoguang Sun, Kyle Bedard, Michael Hines, Jie Li, Robert Dyer

Proceedings Volume 11000, Fiber Optic Sensors and Applications XVI; 1100005 (2019) https://doi.org/10.1117/12.2518523
Event: SPIE Defense + Commercial Sensing, 2019, Baltimore, MD, United States

Abstract

Simultaneous distributed strain and temperature measurement based on Brillouin frequency shift (BFS) was demonstrated using a dual-Brillouin-peak single-mode (SM) optical fiber. The fiber is designed and fabricated with enhanced Brillouin gain of higher-order acoustic modes so that the gains of the multiple Brillouin peaks are at a similar level. In a 25-kilometer sensing length with 5-meter spatial resolution, the achieved temperature resolution is 2°C and the strain resolution is 40 microstrain.

Conference Presentation

Citation Download Citation

Xiaoguang Sun, Kyle Bedard, Michael Hines, Jie Li, and Robert Dyer "Simultaneous distributed strain and temperature measurement using a dual-Brillouin-peak optical fiber", Proc. SPIE 11000, Fiber Optic Sensors and Applications XVI, 1100005 (14 May 2019); https://doi.org/10.1117/12.2518523

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