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Proceedings Paper

Expansion of spatial measurement range in a correlation based Brillouin optical sensing system
Author(s): Ji Ho Jeong; Kwanil Lee; Je-Myung Jeong; Sang Bae Lee
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Paper 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.

Paper Details

Date Published: 17 May 2011
PDF: 4 pages
Proc. SPIE 7753, 21st International Conference on Optical Fiber Sensors, 77532A (17 May 2011); doi: 10.1117/12.884641
Show Author Affiliations
Ji Ho Jeong, Korea Institute of Science and Technology (Korea, Republic of)
Hanyang Univ. (Korea, Republic of)
Kwanil Lee, Korea Institute of Science and Technology (Korea, Republic of)
Je-Myung Jeong, Hanyang Univ. (Korea, Republic of)
Sang Bae Lee, Korea Institute of Science and Technology (Korea, Republic of)


Published in SPIE Proceedings Vol. 7753:
21st International Conference on Optical Fiber Sensors
Jacques Albert; Wojtek J. Bock, Editor(s)

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