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Proceedings Paper

Brillouin-based distributed temperature and strain sensor using the Landau-Placzek Ratio
Author(s): Hanbai Fan; Chunlin Huang; Yongqian Li
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Paper Abstract

A distributed optical fiber temperature and strain sensing system using the Landau-Placzek Ratio (LPR) has been introduced. By applying LPR to simultaneous measurement system of temperature and strain based on Brillouin optical time domain reflectometer (BOTDR), the infulence of fiber attenuation, splice loss, and microbending loss on measurement result could be eliminated. This paper has presented a simultaneous measurement system of temperature and strain based on LPR. The light source configuration and method to improve polarization-induced fading used in the system are discussed. At last, the measurement accuracy and its effect factors are also been analyzed.

Paper Details

Date Published: 24 August 2009
PDF: 9 pages
Proc. SPIE 7381, International Symposium on Photoelectronic Detection and Imaging 2009: Material and Device Technology for Sensors, 738105 (24 August 2009); doi: 10.1117/12.835717
Show Author Affiliations
Hanbai Fan, North China Electric Power Univ. (China)
Chunlin Huang, North China Electric Power Univ. (China)
Yongqian Li, North China Electric Power Univ. (China)


Published in SPIE Proceedings Vol. 7381:
International Symposium on Photoelectronic Detection and Imaging 2009: Material and Device Technology for Sensors
Xu-yuan Chen; Yue-lin Wang; Zhi-ping Zhou; Qing-kang Wang, Editor(s)

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