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Proceedings Paper

Latest research on long-range Brillouin distributed sensing
Author(s): Alayn Loayssa; Javier Urricelqui; Haritz Iribas; Jon Mariñelarena; Juan José Mompó
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Paper Abstract

We review the latest developments in long-range Brillouin optical time-domain analysis sensors. The factors that impair the performance of these sensors, particularly in terms of their distance range, are discussed together with the latest methods to overcome them. We focus on our recent contributions based on the application of the probe dithering method, which is based on introducing a wavelength modulation to the probe wave. This technique is shown to effectively compensate nonlocal effects originated in the depletion of the pump pulse as well as of its pedestal. In addition, it can provide amplification to the pump wave with a slight modification of the setup. Furthermore, this method can be combined with pump pulse coding and a new technique for coding linearization that we have devised to further extend the sensing length into the hundreds of kilometers range.

Paper Details

Date Published: 1 March 2019
PDF: 12 pages
Proc. SPIE 10934, Optical, Opto-Atomic, and Entanglement-Enhanced Precision Metrology, 109340K (1 March 2019); doi: 10.1117/12.2515598
Show Author Affiliations
Alayn Loayssa, Univ. Pública de Navarra (Spain)
Javier Urricelqui, Univ. Pública de Navarra (Spain)
Haritz Iribas, Univ. Pública de Navarra (Spain)
Jon Mariñelarena, Univ. Pública de Navarra (Spain)
Juan José Mompó, Univ. Pública de Navarra (Spain)

Published in SPIE Proceedings Vol. 10934:
Optical, Opto-Atomic, and Entanglement-Enhanced Precision Metrology
Selim M. Shahriar; Jacob Scheuer, Editor(s)

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