Single-ended distributed temperature or strain sensor based on stimulated Brillouin scattering

Weiwen Zou; Zuyuan He; Kazuo Hotate

doi:10.1117/12.835058

5 October 2009 Single-ended distributed temperature or strain sensor based on stimulated Brillouin scattering

Weiwen Zou, Zuyuan He, Kazuo Hotate

Proceedings Volume 7503, 20th International Conference on Optical Fibre Sensors; 75036B (2009) https://doi.org/10.1117/12.835058
Event: 20th International Conference on Optical Fibre Sensors, 2009, Edinburgh, United Kingdom

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.

Citation Download Citation

Weiwen Zou, Zuyuan He, and Kazuo Hotate "Single-ended distributed temperature or strain sensor based on stimulated Brillouin scattering", Proc. SPIE 7503, 20th International Conference on Optical Fibre Sensors, 75036B (5 October 2009); https://doi.org/10.1117/12.835058

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