Rating the limitations and effectiveness of BOTDA range extension techniques

X. Angulo-Vinuesa; A. Dominguez-Lopez; A. Lopez-Gil; J. D. Ania-Castañon; S. Martin-Lopez; M. Gonzalez-Herraez

doi:10.1117/12.2194800

28 September 2015 Rating the limitations and effectiveness of BOTDA range extension techniques

X. Angulo-Vinuesa, A. Dominguez-Lopez, A. Lopez-Gil, J. D. Ania-Castañon, S. Martin-Lopez, M. Gonzalez-Herraez

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.

Citation Download Citation

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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