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Sistema y método de caracterización distribuida de variaciones de índice de refracción de una fibra óptica

Authors: García Ruiz, Andrés; Pastor-Graells, Juan; Martín-López, Sonia; González-Herráez, Miguel; Velasco, Aitor V.; Martins, Hugo F.;

Sistema y método de caracterización distribuida de variaciones de índice de refracción de una fibra óptica

Abstract

[ES] Sistema y método de caracterización distribuida de variaciones de índice de refracción de una fibra óptica. Método y sistema que permiten caracterizar las variaciones locales del índice de refracción entre distintos estados de una fibra óptica por comparación de perfiles de amplitud de una pluralidad de señales ópticas retrodispersadas generadas mediante dispersión Rayleigh por una pluralidad de señales ópticas pulsadas al propagarse por dicha fibra óptica; comprendiendo dichas señales ópticas pulsadas un perfil de frecuencia instantánea variable en el tiempo y constante entre pulsos. La invención proporciona una caracterización de alta resolución espacial, sensibilidad y velocidad, necesitando un único pulso para caracterizar un estado de la fibra óptica en lugar de recurrir a barridos de frecuencia en múltiples pulsos.

[EN] The invention relates to a method and a system that allow the characterisation of the local variations in the refractive index between different states of an optical fibre by comparing amplitude profiles of a plurality of back-scattered optical signals generated by means of Rayleigh dispersion by a plurality of pulsed optical signals when they propagate through said optical fibre; said pulsed optical signals comprising an instantaneous frequency profile which is time-variable and constant between pulses. The invention provides a characterisation of high spatial resolution, sensitivity and speed, requiring a single pulse in order to characterise a state of the optical fibre instead of performing frequency scans on multiple pulses.

Universidad de Alcalá, Consejo Superior de Investigaciones Científicas (España), Fiber Optics Consulting Services and Technologies S.L.

B1 Patente sin examen previo

Peer reviewed

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selected citations
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This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
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influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
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