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Proceedings Paper

BOTDA sensing system employing a tunable low-cost Brillouin fiber ring laser pump-probe source
Author(s): M. Iuliano; D. Marini; F. Bastianini; G. Bolognini
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Paper Abstract

In this paper we show a Brillouin optical time-domain analysis (BOTDA) sensing system experiment employing a tunable narrow-linewidth dual pump-probe source based on modified Brillouin ring laser technology. The developed cost-effective source generates a pump-locked and tunable probe light, with wavelength shift and a large tuning range (~200 MHz), narrow linewidth (<2.5 MHz) and adequate power (~0.5 mW). The developed source was hence employed in BOTDA system experiments providing distributed sensing over ~10 km single mode optical fiber, and attaining strain and temperature resolutions of ~10με and ~0.5 °C respectively, indicating the pump-probe source as an efficient and cost-effective solution for BOTDA avoiding high-frequency signal generators or complex locking techniques.

Paper Details

Date Published: 23 April 2017
PDF: 4 pages
Proc. SPIE 10323, 25th International Conference on Optical Fiber Sensors, 1032395 (23 April 2017); doi: 10.1117/12.2267520
Show Author Affiliations
M. Iuliano, CNR, IMM Institute (Italy)
Univ. degli Studi di Bologna (Italy)
D. Marini, CNR, IMM Institute (Italy)
Univ. degli Studi di Bologna (Italy)
F. Bastianini, Sestosensor srl (Italy)
G. Bolognini, CNR, IMM Institute (Italy)

Published in SPIE Proceedings Vol. 10323:
25th International Conference on Optical Fiber Sensors
Youngjoo Chung; Wei Jin; Byoungho Lee; John Canning; Kentaro Nakamura; Libo Yuan, Editor(s)

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