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Characterization of the Noise Induced by Stimulated Brillouin Scattering in Distributed Sensing
The excess noise due to stimulated Brillouin scattering (SBS) in gain and loss-based Brillouin optical time-domain analyzers (BOTDA) has been investigated theoretically and experimentally for the first time to the best of our knowledge. This investigation provides a full insight to the SBS-induced noise distribution, which mainly comes from phase-to-intensity conversion noise and the beating noise between the probe wave and spontaneous Brillouin scattering. A complete theoretical model, which is in good agreement with the experimental results, is presented to describe the noise. The results show that a loss-based BOTDA setup gives a better noise performance than a gain-based one in both time and frequency domain. The SBS-induced noise has been characterized in dependence on the pump and probe power and the spatial resolution.
Characterization of the Noise Induced by Stimulated Brillouin Scattering in Distributed Sensing
The excess noise due to stimulated Brillouin scattering (SBS) in gain and loss-based Brillouin optical time-domain analyzers (BOTDA) has been investigated theoretically and experimentally for the first time to the best of our knowledge. This investigation provides a full insight to the SBS-induced noise distribution, which mainly comes from phase-to-intensity conversion noise and the beating noise between the probe wave and spontaneous Brillouin scattering. A complete theoretical model, which is in good agreement with the experimental results, is presented to describe the noise. The results show that a loss-based BOTDA setup gives a better noise performance than a gain-based one in both time and frequency domain. The SBS-induced noise has been characterized in dependence on the pump and probe power and the spatial resolution.
Characterization of the Noise Induced by Stimulated Brillouin Scattering in Distributed Sensing
Kadum, Jaffar Emad (author) / Feng, Cheng (author) / Schneider, Thomas (author)
2020-08-02
Sensors (Basel, Switzerland), 2020, 20(15), 4311; https://doi.org/10.3390/s20154311 -- Sensors (Basel) -- http://www.bibliothek.uni-regensburg.de/ezeit/?2052857 -- https://www.mdpi.com/journal/sensors -- https://www.ncbi.nlm.nih.gov/pmc/journals/1660/ -- 1424-8220 -- 1424-8220
Article (Journal)
Electronic Resource
English
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