Abstract
The sensitivity of Brillouin Frequency Shift (BFS) to strain and temperature has been studied in a bending-loss insensitive fiber (BIF), at two different wavelengths (850 and 1550 nm). The results show that the ratio between strain sensitivity at the two wavelengths is different from the ratio between temperature sensitivity, which can be conveniently used for simultaneous and distributed measurement of the two parameters using a single sensing element. Experimental results, carried out at 1-m spatial resolution, demonstrate the feasibility of the proposed method.
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References
Bao, X., Chen, L.: Recent progress in Brillouin scattering based fiber sensors. Sensors 11(4), 4152–4187 (2011)
Thévenaz, L.: Brillouin distributed time-domain sensing in optical fibers: state of the art and perspectives. Frontiers of Optoelectronics in China 3(1), 13–21 (2010)
Minardo, A., Coscetta, A., Bernini, R., Zeni, L.: Brillouin optical time domain analysis in Silica fibers at 850-nm wavelength. IEEE Photon. Technol. Lett. 28(22), 2577–2580 (2016)
Zou, W., He, Z., Hotate, K.: Investigation of strain- and temperature-dependences of Brillouin frequency shifts in GeO2 -doped optical fibers. J. of Lightw. Technol. 26(13), 1854–1861 (2008)
Zou, W., He, Z., Hotate, K.: Complete discrimination of strain and temperature using Brillouin frequency shift and birefringence in a polarization-maintaining fiber. Opt. Express 17, 1248–1255 (2009)
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Minardo, A., Catalano, E., Coscetta, A., Zeni, L. (2018). Dual Wavelength Botda for Strain/Temperature Discrimination. In: Leone, A., Forleo, A., Francioso, L., Capone, S., Siciliano, P., Di Natale, C. (eds) Sensors and Microsystems. AISEM 2017. Lecture Notes in Electrical Engineering, vol 457. Springer, Cham. https://doi.org/10.1007/978-3-319-66802-4_4
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DOI: https://doi.org/10.1007/978-3-319-66802-4_4
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