17 May 2011 Expansion of spatial measurement range in a correlation based Brillouin optical sensing system
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Proceedings Volume 7753, 21st International Conference on Optical Fiber Sensors; 77532A (2011) https://doi.org/10.1117/12.884641
Event: 21st International Conference on Optical Fibre Sensors (OFS21), 2011, Ottawa, Canada
Abstract
We propose a novel technique for expansion of spatial measurement range in a Brillouin optical correlation domain analysis (BOCDA) sensor system. Unlike conventional BOCDA, which has only a single correlation peak within the sensing fiber, the proposed scheme has multiple correlation peaks within the sensing section, and enables us to obtain selectively the physical information at a position corresponding to each correlation peak since the fiber under test consists of different kinds of fibers with different Brillouin frequency shifts. Using the proposed technique, we have successfully expanded a measurement range while maintaining the spatial resolution.
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Ji Ho Jeong, Ji Ho Jeong, Kwanil Lee, Kwanil Lee, Je-Myung Jeong, Je-Myung Jeong, Sang Bae Lee, Sang Bae Lee, } "Expansion of spatial measurement range in a correlation based Brillouin optical sensing system", Proc. SPIE 7753, 21st International Conference on Optical Fiber Sensors, 77532A (17 May 2011); doi: 10.1117/12.884641; https://doi.org/10.1117/12.884641
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