Few-mode fiber multi-parameter sensor with distributed temperature and strain discrimination
Date
2015
Authors
Li, A.
Wang, Y.
Fang, J.
Li, M.J.
Kim, B.Y.
Shieh, W.
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Advisors
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Journal article
Citation
Optics Letters, 2015; 40(7):1488-1491
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Abstract
We propose a unique few-mode fiber (FMF)-based multi-parameter optical-fiber sensor for distributed measurement of temperature and strain. We launch a pump and a probe signal through specific linearly polarized modes into a FMF, and monitor the Brillouin frequency shift (BFS) in each mode. By analyzing the temperature and strain coefficients of the BFS of the two lowest order (LP01, LP11) modes, discrimination of temperature and strain are successfully demonstrated, with an accuracy of 1.2°C and 21.9 με
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Dissertation Note
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Link to a related website: http://pdfs.semanticscholar.org/428c/9f2c309ae82dfe3d2a167601c61a3e0fec81.pdf, Open Access via Unpaywall
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Copyright 2015 Optical Society of America