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Proceedings Paper

Fiber optical distributed temperature and strain sensing system based on Brillouin light scattering
Author(s): Yi Li; Xianliang Xue
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Paper Abstract

In this paper, a two locking lasers BOTDR (Brillouin optical time domain reflectometry) system is demonstrated. Two narrow linewidth DFB lasers are used as the light sources. Their frequencies are locked with a frequency difference of about 11 GHz, which can greatly improve the measurement accuracy and system stability. At a 5-km standard single-mode fiber, distributed temperature measurements can be achieved in lab with a spatial resolution of 10m and a temperature resolution of 2°C.

Paper Details

Date Published: 30 November 2011
PDF: 6 pages
Proc. SPIE 8201, 2011 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Systems, 820129 (30 November 2011); doi: 10.1117/12.907018
Show Author Affiliations
Yi Li, China Jiliang Univ. (China)
Xianliang Xue, China Jiliang Univ. (China)


Published in SPIE Proceedings Vol. 8201:
2011 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Systems
Xinyong Dong; Xiaoyi Bao; Perry Ping Shum; Tiegen Liu, Editor(s)

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