Abstract

We propose and demonstrate a long-range Brillouin Optical Time-Domain Analysis (BOTDA) distributed sensing system making use of an unbalanced double sideband probe formed by a Stokes and an anti-Stokes line. In particular, we show that for each measuring condition an optimal Stokes /anti-Stokes input power ratio exists, allowing a larger suppression of nonlocal effects induced by pump depletion. Experiments on a 50 km single-mode sensing fiber with 5 meters spatial resolution are reported.


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

https://www.ncbi.nlm.nih.gov/pubmed/22109409,
https://academic.microsoft.com/#/detail/1998551832
http://dx.doi.org/10.1364/oe.19.023845
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Published on 01/01/2011

Volume 2011, 2011
DOI: 10.1364/oe.19.023845
Licence: CC BY-NC-SA license

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