9 May 2012 High-resolution Raman-assisted Brillouin sensor based on differential pulse-width pair technique
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Abstract
High sensing resolution in long-distance distributed fiber optic sensors, such as Brillouin Optical Time Domain Analysis (BOTDA), cannot be trivially achieved due to several issues including self-phase modulation, resolution-uncertainty trade-offs and fiber attenuation. These problems could be fixed by the use of differential pulse-pair techniques in combination with Raman amplification. In this work we present a Differential Pulse-width Pair (DPP) Raman-assisted BOTDA sensor, that can achieve 1 meter resolution in a 100 km range.
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Xabier Angulo-Vinuesa, Xabier Angulo-Vinuesa, Sonia Martin-Lopez, Sonia Martin-Lopez, Pedro Corredera, Pedro Corredera, Miguel González-Herráez, Miguel González-Herráez, } "High-resolution Raman-assisted Brillouin sensor based on differential pulse-width pair technique", Proc. SPIE 8439, Optical Sensing and Detection II, 84390A (9 May 2012); doi: 10.1117/12.922716; https://doi.org/10.1117/12.922716
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