Proposal and experiment of BOCDR: Brillouin optical correlation-domain reflectometry

Yosuke Mizuno; Weiwen Zou; Zuyuan He; Kazuo Hotate

doi:10.1117/12.785943

16 May 2008 Proposal and experiment of BOCDR: Brillouin optical correlation-domain reflectometry

Yosuke Mizuno, Weiwen Zou, Zuyuan He, Kazuo Hotate

Proceedings Volume 7004, 19th International Conference on Optical Fibre Sensors; 70043M (2008) https://doi.org/10.1117/12.785943
Event: 19th International Conference on Optical Fibre Sensors, 2008, Perth, WA, Australia

Abstract

We propose Brillouin optical correlation-domain reflectometry (BOCDR), which can measure the strain and/or temperature distribution along an optical fiber by controlling the interference of continuous lightwaves. In pulse-based conventional Brillouin optical time-domain reflectometry (BOTDR), it is difficult to achieve a spatial resolution less than 1 m in principle, and the measurement time is as long as 5-10 minutes. On the contrary, the continuous-wave-based BOCDR can exceed the limit of 1-m resolution, and realize much faster measurement and random access to measuring position. A 40-cm spatial resolution was experimentally demonstrated with 50-Hz sampling rate.

Citation Download Citation

Yosuke Mizuno, Weiwen Zou, Zuyuan He, and Kazuo Hotate "Proposal and experiment of BOCDR: Brillouin optical correlation-domain reflectometry", Proc. SPIE 7004, 19th International Conference on Optical Fibre Sensors, 70043M (16 May 2008); https://doi.org/10.1117/12.785943

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