23 April 2017 BOCDA system enhanced by concurrent interrogation of multiple correlation peaks with a 10-km sensing range
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Proceedings Volume 10323, 25th International Conference on Optical Fiber Sensors; 1032369 (2017) https://doi.org/10.1117/12.2263416
Event: 25th International Conference on Optical Fiber Sensors, 2017, Jeju, Korea, Republic of
Abstract
A Brillouin optical correlation domain analysis (BOCDA) system using time-domain data processing for concurrently interrogating a plurality of sensing positions is proposed, where the time-domain data processing combined with differential measurement effectively enhances the measurement range and measurement time as much as the spatial resolution of the BOCDA system. In the experiment, the distribution of the Brillouin gain spectra (BGS) along a 10.15 km test fiber is successfully obtained with a spatial resolution less than 5 cm by concurrently interrogating 980 correlation peaks.
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Gukbeen Ryu, Gukbeen Ryu, Gyu-Tae Kim, Gyu-Tae Kim, Kwang Yong Song, Kwang Yong Song, Sang Bae Lee, Sang Bae Lee, Kwanil Lee, Kwanil Lee, } "BOCDA system enhanced by concurrent interrogation of multiple correlation peaks with a 10-km sensing range", Proc. SPIE 10323, 25th International Conference on Optical Fiber Sensors, 1032369 (23 April 2017); doi: 10.1117/12.2263416; https://doi.org/10.1117/12.2263416
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