Spatial resolution enhancement for Brillouin optical time domain analysis distributed sensor by use of correlation peak

Soodabeh Nouri Jouybari; Hamid Latifi; Atefeh Ahmadlou; Morteza Karami

doi:10.1117/12.827460

17 June 2009 Spatial resolution enhancement for Brillouin optical time domain analysis distributed sensor by use of correlation peak

Soodabeh Nouri Jouybari, Hamid Latifi, Atefeh Ahmadlou, Morteza Karami

Author Affiliations +

Proceedings Volume 7389, Optical Measurement Systems for Industrial Inspection VI; 73892T (2009) https://doi.org/10.1117/12.827460
Event: SPIE Europe Optical Metrology, 2009, Munich, Germany

Abstract

Distributed optical fiber sensors based on Brillouin scattering by measurement on time domain, due to its capability for strain and temperature measurement continuously for long range, are currently interesting. These sensors are based on spectral characteristics change of back scattered light at different places along the fiber. For this method Spatial resolution is limited by pulse length. We want to improve spatial resolution at time domain sensors by using of sinusoidal frequency modulation of pulse probe and continuous pump light. In this article, this method is simulated.

Citation Download Citation

Soodabeh Nouri Jouybari, Hamid Latifi, Atefeh Ahmadlou, and Morteza Karami "Spatial resolution enhancement for Brillouin optical time domain analysis distributed sensor by use of correlation peak", Proc. SPIE 7389, Optical Measurement Systems for Industrial Inspection VI, 73892T (17 June 2009); https://doi.org/10.1117/12.827460

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