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Advanced Interrogation of Fiber-Optic Bragg Grating and Fabry-Perot Sensors with KLT Analysis

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dc.contributor.author Tosi, Daniele
dc.date.accessioned 2019-04-24T11:43:23Z
dc.date.available 2019-04-24T11:43:23Z
dc.date.issued 2015-10-29
dc.identifier.citation Tosi, D. Advanced Interrogation of Fiber-Optic Bragg Grating and Fabry-Perot Sensors with KLT Analysis. Sensors 2015, 15, 27470-27492. en_US
dc.identifier.uri http://dx.doi.org/10.3390/s151127470
dc.identifier.uri http://nur.nu.edu.kz/handle/123456789/3834
dc.description.abstract The Karhunen-Loeve Transform (KLT) is applied to accurate detection of optical fiber sensors in the spectral domain. By processing an optical spectrum, although coarsely sampled, through the KLT, and subsequently processing the obtained eigenvalues, it is possible to decode a plurality of optical sensor results. The KLT returns higher accuracy than other demodulation techniques, despite coarse sampling, and exhibits higher resilience to noise. Three case studies of KLT-based processing are presented, representing most of the current challenges in optical fiber sensing: (1) demodulation of individual sensors, such as Fiber Bragg Gratings (FBGs) and Fabry-Perot Interferometers (FPIs); (2) demodulation of dual (FBG/FPI) sensors; (3) application of reverse KLT to isolate different sensors operating on the same spectrum. A simulative outline is provided to demonstrate the KLT operation and estimate performance; a brief experimental section is also provided to validate accurate FBG and FPI decoding. en_US
dc.language.iso en en_US
dc.publisher MDPI en_US
dc.rights Attribution-NonCommercial-ShareAlike 3.0 United States *
dc.rights.uri http://creativecommons.org/licenses/by-nc-sa/3.0/us/ *
dc.subject optical fiber sensors (OFS) en_US
dc.subject fiber Bragg grating (FBG) en_US
dc.subject Fabry-Perot interferometry (FPI) en_US
dc.subject optical signal processing en_US
dc.subject Karhunen-Loeve Transform (KLT) en_US
dc.subject optical sensor demodulation en_US
dc.title Advanced Interrogation of Fiber-Optic Bragg Grating and Fabry-Perot Sensors with KLT Analysis en_US
dc.type Article en_US
workflow.import.source science


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