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Raman-assisted Brillouin optical time-domain analysis with sub-meter resolution over 100 km

AuthorsAngulo Vinuesa, X. ; Martín López, Sonia; Corredera, Pedro ; González Herráez, Miguel
Issue Date2012
PublisherOptical Society of America
CitationOptics Express 20: 12147- 12154 (2012)
AbstractSub-meter resolution in long-distance Brillouin Optical Time Domain Analysis (BOTDA) cannot be trivially achieved due to several issues including: resolution-uncertainty trade-offs, self-phase modulation, fiber attenuation, depletion, etc. In this paper we show that combining Raman assistance, differential pulse-width pair (DPP) measurements and a novel numerical de-noising procedure, we could obtain sub-meter resolution Brillouin optical time-domain analysis over a range of 100 km. We successfully demonstrate the detection of a 0.5 meter hot-spot in the position of worst contrast along the fiber. © 2012 Optical Society of America.
Identifiersdoi: 10.1364/OE.20.012147
issn: 1094-4087
Appears in Collections:(CFMAC-IO) Artículos
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