Simultaneous strain and temperature measurements using dual-wavelength BOTDA

E. Catalano; R. Laiso; R. Bernini; L. Zeni; A. Minardo

doi:10.1117/12.2265121

23 April 2017 Simultaneous strain and temperature measurements using dual-wavelength BOTDA

E. Catalano, R. Laiso, R. Bernini, L. Zeni, A. Minardo

Proceedings Volume 10323, 25th International Conference on Optical Fiber Sensors; 103237F (2017) https://doi.org/10.1117/12.2265121
Event: 25th International Conference on Optical Fiber Sensors, 2017, Jeju, Korea, Republic of

Abstract

Brillouin scattering properties of a bend-insensitive fiber were experimentally investigated at 850 nm and 1550 nm wavelength using Brillouin optical time-domain analysis (BOTDA). A diversity scheme has been adopted, in which the BFS distribution along the same fiber is acquired at the two operating wavelengths. Based on the different wavelength scaling factor of temperature and strain coefficients, simultaneous measurement of strain and temperature at 1-m spatial resolution has been obtained in a proof-of-concept experiment.

Citation Download Citation

E. Catalano, R. Laiso, R. Bernini, L. Zeni, and A. Minardo "Simultaneous strain and temperature measurements using dual-wavelength BOTDA", Proc. SPIE 10323, 25th International Conference on Optical Fiber Sensors, 103237F (23 April 2017); https://doi.org/10.1117/12.2265121

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