Brillouin optical time-domain analysis assisted by second-order Raman amplification

We propose and experimentally demonstrate a new method to extend the range of Brillouin optical time domain analysis (BOTDA) systems. It exploits the virtual transparency created by second-order Raman pumping in optical fibers. The idea is theoretically analyzed and experimentally demonstrated in a...

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Bibliographic Details
Published inOptics express Vol. 18; no. 18; pp. 18769 - 18778
Main Authors Martin-Lopez, Sonia, Alcon-Camas, Mercedes, Rodriguez, Felix, Corredera, Pedro, Ania-Castañon, Juan Diego, Thévenaz, Luc, Gonzalez-Herraez, Miguel
Format Journal Article
LanguageEnglish
Published United States 30.08.2010
Subjects
Algorithms
Equipment Design
Lasers
Models, Statistical
Optical Fibers
Optics and Photonics
Signal Processing, Computer-Assisted
Spectrum Analysis, Raman - methods
Temperature
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Summary:We propose and experimentally demonstrate a new method to extend the range of Brillouin optical time domain analysis (BOTDA) systems. It exploits the virtual transparency created by second-order Raman pumping in optical fibers. The idea is theoretically analyzed and experimentally demonstrated in a 50 km fiber. By working close to transparency, we also show that the measurement length of the BOTDA can be increased up to 100 km with 2 meter resolution. We envisage extensions of this technique to measurement lengths well beyond this value, as long as the issue of relative intensity noise (RIN) of the primary Raman pump can be avoided.
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ISSN:1094-4087
1094-4087
DOI:10.1364/oe.18.018769