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28 September 2015 Reaching the ultimate performance limit given by non-local effects in BOTDA sensors
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Proceedings Volume 9634, 24th International Conference on Optical Fibre Sensors; 96342E (2015) https://doi.org/10.1117/12.2205440
Event: International Conference on Optical Fibre Sensors (OFS24), 2015, Curitiba, Brazil
Abstract
Non-local effects have been traditionally identified as one of the most limiting factors of the performance of Brillouin optical time-domain analyzers. These phenomena, directly linked with the energy gained/lost by the pump pulse, limit the probe power and ultimately the SNR of the system. Several solutions have been proposed, although none offers the possibility to increase the probe power until its limit, the onset of amplified spontaneous Brillouin scattering. In this work, we propose a technique that avoids non-local effects and permits to set the probe power at its maximum, reaching a 100 km sensing distance with 2 meter resolution.
© (2015) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Alejandro Dominguez-Lopez, Zhisheng Yang, Marcelo A. Soto, Xabier Angulo-Vinuesa, S. Martin-Lopez, Luc Thevenaz, and Miguel Gonzalez-Herraez "Reaching the ultimate performance limit given by non-local effects in BOTDA sensors", Proc. SPIE 9634, 24th International Conference on Optical Fibre Sensors, 96342E (28 September 2015); https://doi.org/10.1117/12.2205440
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