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Proceedings Paper

Single-ended distributed temperature or strain sensor based on stimulated Brillouin scattering
Author(s): Weiwen Zou; Zuyuan He; Kazuo Hotate
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Paper Abstract

We propose a single-ended distributed temperature or strain sensor based on stimulated Brillouin scattering (SBS) in a polarization-maintaining (PM) optical fiber. Pump and probe waves with orthogonal polarization states enter one fiber end and generate SBS assisted by a polarization beam splitter and a PM isolator at the other fiber end. Unlike the previously-reported method, neither an optical filter nor a sophisticated beat-lock-in detection is necessary. Single-ended distributed sensing of temperature or strain is experimentally demonstrated with the measurement range and the spatial resolution of 200 m/16 cm, 56 m/5 cm, or 5.6 m/5 mm, respectively.

Paper Details

Date Published: 5 October 2009
PDF: 4 pages
Proc. SPIE 7503, 20th International Conference on Optical Fibre Sensors, 75036B (5 October 2009); doi: 10.1117/12.835058
Show Author Affiliations
Weiwen Zou, The Univ. of Tokyo (Japan)
Zuyuan He, The Univ. of Tokyo (Japan)
Kazuo Hotate, The Univ. of Tokyo (Japan)


Published in SPIE Proceedings Vol. 7503:
20th International Conference on Optical Fibre Sensors
Julian D. C. Jones, Editor(s)

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