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Brillouin frequency shift estimation in BOTDA via subpixel processing

Abstract: In this paper we propose the employment of sub-pixel algorithms for the estimation of the central frequency of the Brillouin Gain Spectrum in a Brillouin Optical Time Domain Analyzer. The experimental results will show that the proposed solution shows a good performance when the chosen frequency step for the required frequency sweep is high. If the improved computational efficiency in comparison to the traditional Lorentzian fitting is also considered, it can be concluded that this approach may be of great interest for dynamic measurement scenarios.

Other conference communications or articles related to authors from the University of Cantabria

 Authorship: Ruiz-Lombera R., Mirapeix J., Laarossi I., Rodríguez-Cobo L., Lopez-Higuera J.,

 Congress: European Workshop on Optical Fibre Sensors (6º : 2016 : Limerick, Irlanda)

 Publisher: SPIE Society of Photo-Optical Instrumentation Engineers

 Year of publication: 2016

 No. of pages: 4

 Publication type: Conference object

 DOI: 10.1117/12.2236862

 ISSN: 0277-786X,1996-756X

 Spanish project: TEC2013-47264-C2-1-R

 Publication Url: https://doi.org/10.1117/12.2236862

Authorship

RUBEN RUIZ LOMBERA

ISMAIL LAAROSSI