Spontaneous Brillouin distributed optical fiber temperature sensing system

Yujun He; Chengqun Yin; Dong Cao; Yongqian Li

doi:10.1117/12.633268

8 December 2005 Spontaneous Brillouin distributed optical fiber temperature sensing system

Yujun He, Chengqun Yin, Dong Cao, Yongqian Li

Proceedings Volume 6021, Optical Transmission, Switching, and Subsystems III; 602148 (2005) https://doi.org/10.1117/12.633268
Event: Asia-Pacific Optical Communications, 2005, Shanghai, China

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.

Citation Download Citation

Yujun He, Chengqun Yin, Dong Cao, and Yongqian Li "Spontaneous Brillouin distributed optical fiber temperature sensing system", Proc. SPIE 6021, Optical Transmission, Switching, and Subsystems III, 602148 (8 December 2005); https://doi.org/10.1117/12.633268

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