Expansion of spatial measurement range in a correlation based Brillouin optical sensing system

Ji Ho Jeong; Kwanil Lee; Je-Myung Jeong; Sang Bae Lee

doi:10.1117/12.884641

17 May 2011 Expansion of spatial measurement range in a correlation based Brillouin optical sensing system

Ji Ho Jeong, Kwanil Lee, Je-Myung Jeong, Sang Bae Lee

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.

Citation Download Citation

Ji Ho Jeong, Kwanil Lee, Je-Myung Jeong, and 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); https://doi.org/10.1117/12.884641

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