Distributed fiber optical strain sensor based on BOFDR

Zhaoxia Wu; Fei Wu; Liyong Niu; Zhiquan Li

doi:10.1117/12.676398

19 May 2006 Distributed fiber optical strain sensor based on BOFDR

Zhaoxia Wu, Fei Wu, Liyong Niu, Zhiquan Li

Proceedings Volume 6150, 2nd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment; 61501W (2006) https://doi.org/10.1117/12.676398
Event: 2nd International Symposium on Advanced Optical Manufacturing and Testing Technologies, 2005, Xian, China

Abstract

Frequency shift in Brillouion back-scattering light can be changed when strain is exerted to an optical fiber. Brillouin scattering can be used to measure strain in distributed manner. A new fully distributed fiber optical strain sensing is proposed based on Brilliouin optical-fiber frequency domain reflectometry (BOFDR). A new measurement is reported by utilizing fiber Bragg grating Fabry-Perot interferometer (FBGFPI) to directly separate the Brilliouin signal. The experimental setup and result are presented. Primary result confirms this configuration feasible.

Citation Download Citation

Zhaoxia Wu, Fei Wu, Liyong Niu, and Zhiquan Li "Distributed fiber optical strain sensor based on BOFDR", Proc. SPIE 6150, 2nd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, 61501W (19 May 2006); https://doi.org/10.1117/12.676398

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