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28 September 2015 Rating the limitations and effectiveness of BOTDA range extension techniques
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Proceedings Volume 9634, 24th International Conference on Optical Fibre Sensors; 96346R (2015) https://doi.org/10.1117/12.2194800
Event: International Conference on Optical Fibre Sensors (OFS24), 2015, Curitiba, Brazil
Abstract
Brillouin Optical Time Domain Analysis (BOTDA) is becoming a consolidated technique in applications requiring high-resolution monitoring over extremely long distances. Extension of the measuring range has therefore become one of the main areas of research around BOTDA technology. To increase the sensing range, it is necessary to increase the Signal to Noise Ratio (SNR) of the retrieved signal. This has been achieved so far by applying techniques like pre-amplification before detection, pulse coding or Raman amplification. Here, we analyze these techniques in terms of their performance limits and provide guidelines that determine which is the best configuration to overcome current range limitations.
© (2015) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
X. Angulo-Vinuesa, A. Dominguez-Lopez, A. Lopez-Gil, J. D. Ania-Castañon, S. Martin-Lopez, and M. Gonzalez-Herraez "Rating the limitations and effectiveness of BOTDA range extension techniques ", Proc. SPIE 9634, 24th International Conference on Optical Fibre Sensors, 96346R (28 September 2015); https://doi.org/10.1117/12.2194800
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