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Proceedings Paper

Spontaneous Brillouin distributed optical fiber temperature sensing system
Author(s): Yujun He; Chengqun Yin; Dong Cao; Yongqian Li
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Paper Abstract

Brillouin distributed optical fiber sensing system based on spontaneous Brillouin intensity measurement may measure temperature in the optical fiber, due to the dependence of spontaneous Brillouin scattering intensity on temperature. In this paper, a 4.25km distributed optical fiber temperature sensing experiment system was demonstrated. Using the experiment system, we obtained the traces of spontaneous Brillouin scattering intensity as the sensing fiber was not heated and heated respectively. By normalizing the trace of the fiber being heated to the trace of the fiber not being heated, the intensity change of spontaneous Brillouin scattering corresponding to temperature along the fiber has been obtained. And there was a good agree between the result and the heated section of the fiber.

Paper Details

Date Published: 9 December 2005
PDF: 6 pages
Proc. SPIE 6021, Optical Transmission, Switching, and Subsystems III, 602148 (9 December 2005); doi: 10.1117/12.633268
Show Author Affiliations
Yujun He, North China Electric Power Univ. (China)
Chengqun Yin, North China Electric Power Univ. (China)
Dong Cao, North China Electric Power Univ. (China)
Yongqian Li, North China Electric Power Univ. (China)


Published in SPIE Proceedings Vol. 6021:
Optical Transmission, Switching, and Subsystems III
Rodney S. Tucker; Dominique Chiaroni; Wanyi Gu; Ken-ichi Kitayama, Editor(s)

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