Dynamic interrogator for elastic wave sensing using Fabry Perot filters based on fiber Bragg gratings.


Use of in-fiber Fabry-Perot (FP) filters based on fiber Bragg gratings as both sensor as well as an interrogator for enhancing the detection limit of elastic wave sensing is investigated in this paper. The sensitivity of such a demodulation scheme depends on the spectral discrimination of the sensor and interrogator gratings. Simulations have shown that the… (More)
DOI: 10.1016/j.ultras.2015.02.018


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