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Raman-assisted Brillouin optical time-domain analysis with sub-meter resolution over 100 km
2012
Optics Express
Sub-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
doi:10.1364/oe.20.012147
pmid:22714201
fatcat:v4oesqssafflfpbcf3nkazbr4m