Performance improvement in high-speed random accessibility of Brillouin optical correlation domain analysis

Yuta Kohno; Masato Kishi; Kazuo Hotate

doi:10.1117/12.2236853

30 May 2016 Performance improvement in high-speed random accessibility of Brillouin optical correlation domain analysis

Yuta Kohno, Masato Kishi, Kazuo Hotate

Proceedings Volume 9916, Sixth European Workshop on Optical Fibre Sensors; 991630 (2016) https://doi.org/10.1117/12.2236853
Event: Sixth European Workshop on Optical Fibre Sensors (EWOFS'2016), 2016, Limerick, Ireland

Abstract

Brillouin Optical Correlation Domain Analysis (BOCDA) offers high speed random accessibility along a sensing fiber, because it can localize stimulated Brillouin scattering at an arbitrary fiber position. By using this function, simultaneous dynamic strain measurement at arbitrary selected multiple points along the fiber was achieved. However, measurement accuracy was restricted due to performance limitation of lock-in-amplifier in the system. This paper reports a new system which uses I/Q demodulator instead of the lock-in-amplifier. Measurement accuracy was improved.

Citation Download Citation

Yuta Kohno, Masato Kishi, and Kazuo Hotate "Performance improvement in high-speed random accessibility of Brillouin optical correlation domain analysis", Proc. SPIE 9916, Sixth European Workshop on Optical Fibre Sensors, 991630 (30 May 2016); https://doi.org/10.1117/12.2236853

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