Brillouin-based distributed temperature and strain sensor using the Landau-Placzek Ratio

Hanbai Fan; Chunlin Huang; Yongqian Li

doi:10.1117/12.835717

24 August 2009 Brillouin-based distributed temperature and strain sensor using the Landau-Placzek Ratio

Hanbai Fan, Chunlin Huang, Yongqian Li

Proceedings Volume 7381, International Symposium on Photoelectronic Detection and Imaging 2009: Material and Device Technology for Sensors; 738105 (2009) https://doi.org/10.1117/12.835717
Event: International Symposium on Photoelectronic Detection and Imaging 2009, 2009, Beijing, China

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.

Citation Download Citation

Hanbai Fan, Chunlin Huang, and Yongqian Li "Brillouin-based distributed temperature and strain sensor using the Landau-Placzek Ratio", Proc. SPIE 7381, International Symposium on Photoelectronic Detection and Imaging 2009: Material and Device Technology for Sensors, 738105 (24 August 2009); https://doi.org/10.1117/12.835717

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