28 September 2015 Brilloun optical time domain analysis sensor assisted by a Brillouin distributed amplifier
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Proceedings Volume 9634, 24th International Conference on Optical Fibre Sensors; 96344U (2015) https://doi.org/10.1117/12.2194981
Event: International Conference on Optical Fibre Sensors (OFS24), 2015, Curitiba, Brazil
Abstract
We demonstrate the extension of the measurement range of Brillouin optical time-domain analysis (BOTDA) sensors using a distributed Brillouin amplifier (DBA). The technique is based on injecting a DBA pump wave in the fiber to generate an additional Brillouin interaction that amplifies the BOTDA pump pulses. Furthermore, the differential pulse-width pair method is used to counteract the detrimental effects of the DBA amplification on the temporal shape of the pulses. Experimental proof-of-concept results in a 50-km fiber link demonstrate full compensation of the fiber’s attenuation with no penalty on the signal-to-noise ratio of the detected probe wave.
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Javier Urricelqui, Javier Urricelqui, Mikel Sagues, Mikel Sagues, Alayn Loayssa, Alayn Loayssa, } "Brilloun optical time domain analysis sensor assisted by a Brillouin distributed amplifier", Proc. SPIE 9634, 24th International Conference on Optical Fibre Sensors, 96344U (28 September 2015); doi: 10.1117/12.2194981; https://doi.org/10.1117/12.2194981
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