Effect of humidity on optical fiber distributed sensor based on Brillouin scattering
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AuthorGalíndez Jamioy, Carlos Augusto; Madruga Saavedra, Francisco Javier; Lomer Barboza, Mauro Matías; Cobo García, Adolfo; López Higuera, José Miguel
In real sensors, the crosstalk or undesirable crossed sensitivities must be minimized. Distributed Brillouin sensing is a very useful technique to measure fluctuations of temperature along an optical fiber. However, the later measurement can be influenced by the humidity on the fiber; therefore its effect must be minimized. Because the aforementioned, the Brillouin frequency changes with the humidity. Thus, for a given temperature on a distributed fiber sensor such variations have been investigated. The experimental results obtained using three different types of single mode fibers with 1000m length, at 25°C are reported in this paper.
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