Multipoint laser sensors based on Bragg gratings usually identify the acting gratings. However they cannot quantify the signal change. In this work the Fourier discrete transform was used to identify and quantify such signal variations.
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology
(120.4820) Instrumentation, measurement, and metrology : Optical systems
(280.0280) Remote sensing and sensors : Remote sensing and sensors
(280.4788) Remote sensing and sensors : Optical sensing and sensors
O. Méndez Zepeda, S. Muñoz Aguirre, G. Beltrán Pérez, and J. Castillo Mixcóatl, "Interrogation Method of a Bragg Gratings Based Laser Sensor Using FFT," in Frontiers in Optics 2010/Laser Science XXVI, OSA Technical Digest (CD) (Optical Society of America, 2010), paper JTuA10.
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