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High-speed and high-resolution interrogation of FBG sensors using wavelength-to-time mapping and Gaussian filters

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High-speed and high-resolution interrogation of FBG sensors using wavelength-to-time mapping and Gaussian filters

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dc.contributor.author Fernández, Manuel P.
dc.contributor.author Bulus Rossini, Laureano A.
dc.contributor.author Andrés, Miguel V.
dc.contributor.author Costanzo Caso, Pablo A.
dc.date.accessioned 2019-12-05T10:21:53Z
dc.date.available 2019-12-05T10:21:53Z
dc.date.issued 2019 es_ES
dc.identifier.citation Fernández, M. P., Bulus Rossini, L. A., Cruz, J. L., Andrés, M. V., Costanzo Caso, P. A., "High-speed and high-resolution interrogation of FBG sensors using wavelength-to-time mapping and Gaussian filters", Optics Express, Vol. 27, pp. 36815-36823 (2019). OSA. es_ES
dc.identifier.uri https://hdl.handle.net/10550/72389
dc.description.abstract In this work we report a novel intensity-based technique for simultaneous high-speed and high-resolution interrogation of fiber Bragg grating (FBG) sensors. The method uses a couple of intensity Gaussian filters and the dispersion-induced wavelength-to-time mapping effect. The Bragg wavelength is retrieved by means of the amplitude comparison between the two filtered grating spectrums, which are mapped into a time-domain waveform. In this way, measurement distortions arising from residual power due to the grating sidelobes are completely avoided, and the wavelength measurement range is considerably extended with respect to the previously proposed schemes. We present the mathematical background for the interrogation of FBGs with an arbitrary bandwidth. In our proof-of-concept experiments, we achieved sensitivities of ∼20 pm with ultra-fast rates up to 264 MHz. es_ES
dc.language.iso en es_ES
dc.subject optical fibers es_ES
dc.subject fiber sensors es_ES
dc.subject fiber Bragg gratings es_ES
dc.title High-speed and high-resolution interrogation of FBG sensors using wavelength-to-time mapping and Gaussian filters es_ES
dc.type journal article es_ES
dc.subject.unesco UNESCO::FÍSICA::Óptica es_ES
dc.identifier.doi 10.1364/OE.27.036815 es_ES
dc.type.hasVersion VoR es_ES

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