Distributed Sensing at Centimeter-Scale Spatial Resolution by BOFDA: Measurements and Signal Processing

Abstract

In this paper, we demonstrate high spatial (≈3 cm) and spectral (≈30 MHz) resolution Brillouin sensing by use of Brillouin optical frequency-domain analysis (BOFDA) and signal processing. An iterative method is employed to correct the acquired data from spurious effects associated to acoustic wave modulation and relevant in the high spatial resolution regime. Experimental tests demonstrate that the proposed algorithm allows to reconstruct the Brillouin shift profile with the full spatial resolution allowed by the system bandwidth.

Original document

The different versions of the original document can be found in:

• http://dx.doi.org/10.1109/JPHOT.2011.2179024

• http://hdl.handle.net/11591/320870

• https://doi.org/10.1109/jphot.2011.2179024 under the license implied-oa

• http://xplorestaging.ieee.org/ielx5/4563994/6106806/06099543.pdf?arnumber=6099543,

http://dx.doi.org/10.1109/jphot.2011.2179024

• https://ieeexplore.ieee.org/document/6099543,

https://www.infona.pl/resource/bwmeta1.element.ieee-art-000006099543,

http://yadda.icm.edu.pl/yadda/element/bwmeta1.element.ieee-000006099543,

https://ui.adsabs.harvard.edu/abs/2012IPhoJ...4...48B/abstract,

http://ieeexplore.ieee.org/document/6099543,

http://ieeexplore.ieee.org/iel5/4563994/6106806/06099543.pdf,

https://academic.microsoft.com/#/detail/2001262528