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Modulation instability-induced fading in phase-sensitive optical time-domain reflectometry
Phase-sensitive optical time-domain reflectometry (φOTDR) is a simple and effective tool allowing the distributed monitoring of vibrations along single-mode fibers. We show in this Letter that modulation instability (MI) can induce a position-dependent signal fading in long-range φOTDR over conventional optical fibers. This fading leads to a complete masking of the interference signal recorded at certain positions and therefore to a sensitivity loss at these positions. We illustrate this effect both theoretically and experimentally. While this effect is detrimental in the context of distributed vibration analysis using φOTDR, we also believe that the technique provides a clear and insightful way to evidence the Fermi-Pasta-Ulam recurrence associated with the MI process. ; European Commission ; Ministerio de Economía y Competitividad ; Comunidad de Madrid
Modulation instability-induced fading in phase-sensitive optical time-domain reflectometry
Phase-sensitive optical time-domain reflectometry (φOTDR) is a simple and effective tool allowing the distributed monitoring of vibrations along single-mode fibers. We show in this Letter that modulation instability (MI) can induce a position-dependent signal fading in long-range φOTDR over conventional optical fibers. This fading leads to a complete masking of the interference signal recorded at certain positions and therefore to a sensitivity loss at these positions. We illustrate this effect both theoretically and experimentally. While this effect is detrimental in the context of distributed vibration analysis using φOTDR, we also believe that the technique provides a clear and insightful way to evidence the Fermi-Pasta-Ulam recurrence associated with the MI process. ; European Commission ; Ministerio de Economía y Competitividad ; Comunidad de Madrid
Modulation instability-induced fading in phase-sensitive optical time-domain reflectometry
Fidalgo Martins, Hugo (Autor:in) / Martín López, Sonia (Autor:in) / Corredera, Pedro (Autor:in) / Salgado, P. (Autor:in) / Frazão, O. (Autor:in) / González Herráez, Miguel (Autor:in) / Ingeniería Fotónica / Universidad de Alcalá. Departamento de Electrónica
15.03.2013
doi:10.1364/OL.38.000872
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Modulation instability-induced visibility fading in phase-sensitive OTDR
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