Mathematical analysis of marine pipeline leakage monitoring system based on coherent OTDR with improved sensor length and sampling frequency

A system based on coherent optical time domain reflectometry (OTDR) for subsea pipeline monitoring is described. The fiber sensor length is increased using erbium-doped fiber amplifier (EDFA) cascades. The sampling frequency is increased by dividing the fiber sensor into separate sensitive areas, wi...

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Veröffentlicht in:	Journal of physics. Conference series 2015-01, Vol.584 (1), p.12016-6
Hauptverfasser:	Pnev, A B, Zhirnov, A A, Stepanov, K V, Nesterov, E T, Shelestov, D A, Karasik, V E
Format:	Artikel
Sprache:	eng
Schlagworte:	Amplifiers Cascades Doped fibers Erbium Fibers Mathematical analysis Monitoring Physics Pipelines Sampling Sensors Signal to noise ratio Underwater pipelines Underwater structures
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Zusammenfassung:	A system based on coherent optical time domain reflectometry (OTDR) for subsea pipeline monitoring is described. The fiber sensor length is increased using erbium-doped fiber amplifier (EDFA) cascades. The sampling frequency is increased by dividing the fiber sensor into separate sensitive areas, with parallel scanning. The calculation of the erbium amplifier cascade spontaneous noise influence on the signal-to-noise ratio (SNR) is carried out.
ISSN:	1742-6588 1742-6596
DOI:	10.1088/1742-6596/584/1/012016