23 April 2017 Accurate determination of Brillouin frequency based on cross recurrence plot analysis in Brillouin distributed fiber sensor
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Proceedings Volume 10323, 25th International Conference on Optical Fiber Sensors; 103239M (2017) https://doi.org/10.1117/12.2267655
Event: 25th International Conference on Optical Fiber Sensors, 2017, Jeju, Korea, Republic of
Abstract
We propose and demonstrate the use of cross recurrence plot analysis (CRPA) to accurately determine the Brillouin shift due to strain and temperature in a Brillouin distributed fiber sensor. This signal processing technique, which is implemented in Brillouin sensors for the first time relies on apriori data i.e, the lineshape of the Brillouin gain spectrum and its similarity with the spectral features measured at different locations along the fiber. Analytical and experimental investigation of the proposed scheme is presented in this paper.
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Shahna M. Haneef, Shahna M. Haneef, K. Srijith, K. Srijith, D. Venkitesh, D. Venkitesh, B. Srinivasan, B. Srinivasan, } "Accurate determination of Brillouin frequency based on cross recurrence plot analysis in Brillouin distributed fiber sensor", Proc. SPIE 10323, 25th International Conference on Optical Fiber Sensors, 103239M (23 April 2017); doi: 10.1117/12.2267655; https://doi.org/10.1117/12.2267655
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