Interrogation of interferometric sensors with a tilted fiber Bragg grating
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AuthorJáuregui Misas, César; Quintela Incera, Antonio; Cobo García, Adolfo; Quintela Incera, María Ángeles; Díaz Lucas, Silvia; López Higuera, José Miguel
A novel method for interrogating interferometric sensors, based on analyzing the characteristics of the light expelled from a tilted fiber Bragg grating and captured by a photodetector linear array, is presented in the paper. Also a novel algorithm for the recovery of the measured information is proposed and its performance explored. It belongs to the parametric frequency estimation methods and is an adaptation of the MUltiple SIgnal Classification (MUSIC) algorithm. Finally an insight to the possibility of interrogating multiplexed interferometric sensors is given.
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