BOTDA Sensing Employing a Modified Brillouin Fiber Laser Probe Source

Marini, Diego and Iuliano, Marco and Bastianini, Filippo and Bolognini, Gabriele (2018) BOTDA Sensing Employing a Modified Brillouin Fiber Laser Probe Source. Journal of Lightwave Technology, 36 (4). pp. 1131-1137. ISSN 0733-8724

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A theoretical and experimental study has been carried out on a tunable dual pump-probe optical source for distributed Brillouin optical time-domain analysis (BOTDA). The developed source exploits a modified Brillouin ring laser technology and is capable of a tuning range of ∼200 MHz without using phase-locked loop or optical sideband generation techniques, and exhibits a linewidth smaller than 2.5 MHz and ∼0.5 mW power. In BOTDA experiments, the proposed source has demonstrated to be an efficient solution enabling distributed sensing over 10 km single mode fiber with a spatial resolution of ∼4 m, and a strain and temperature resolutions of ∼10 μϵ and ∼0.5 °C respectively.

Item Type: Article
Uncontrolled Keywords: Brillouin scattering, fibers, nonlinear optics, optical fiber sensors
Subjects: 500 Scienze naturali e Matematica > 500.2 Scienze fisiche
500 Scienze naturali e Matematica > 530 Fisica > 535 Luce e fenomeni parafotici
600 Tecnologia - Scienze applicate > 620 Ingegneria e attivita' affini > 620.5 Nanotecnologia
Depositing User: Dr. Gabriele Bolognini
Date Deposited: 23 Feb 2018 11:49
Last Modified: 23 Feb 2018 11:49

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