Enlargement of measurement range in Brillouin optical correlation domain analysis with high-speed random accessibility using temporal gating scheme for multiple-points dynamic strain measurement

Chunyu Zhang; Masato Kishi; Kazuo Hotate

doi:10.1117/12.2194686

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28 September 2015 Enlargement of measurement range in Brillouin optical correlation domain analysis with high-speed random accessibility using temporal gating scheme for multiple-points dynamic strain measurement

Chunyu Zhang, Masato Kishi, Kazuo Hotate

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Proceedings Volume 9634, 24th International Conference on Optical Fibre Sensors; 96340H (2015) https://doi.org/10.1117/12.2194686
Event: International Conference on Optical Fibre Sensors (OFS24), 2015, Curitiba, Brazil

Abstract

We propose and experimentally demonstrate a Brillouin optical correlation domain analysis system both with high-speed random accessibility and with temporal gating scheme to extend the measurement range. High-speed dynamic strain measurement at multiple points selected arbitrarily along an elongated measurement range is demonstrated. We successfully measured the dynamic strain at the selected two points along a fiber, with 200 m measurement range, 8 cm spatial resolution, and 1,000 points/s measurement speed of random accessibility.

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Chunyu Zhang, Masato Kishi, and Kazuo Hotate "Enlargement of measurement range in Brillouin optical correlation domain analysis with high-speed random accessibility using temporal gating scheme for multiple-points dynamic strain measurement", Proc. SPIE 9634, 24th International Conference on Optical Fibre Sensors, 96340H (28 September 2015); https://doi.org/10.1117/12.2194686

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