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Proceedings Paper

Brillouin sensing in optically heated Co2+-doped fibers
Author(s): A. Minardo; A. Coscetta; E. Catalano; E. Cerri; L. Zeni
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Paper Abstract

In this paper, we demonstrate the use of single-mode Cobalt-doped fibers for active distributed temperature sensing with optical heating. A high-power EDFA at 1550nm is used for optically heating the fiber, while a Brillouin Optical FrequencyDomain Analysis (BOFDA) set-up operating at 850nm is employed to monitor the corresponding temperature changes. Owing to the use of a dual wavelength scheme, longer sensing distances can be reached even with relatively high doping concentrations. As a proof of concept, we demonstrate the possibility to distinguish two 1-m fiber sections, one immersed into water and another one surrounded by air.

Paper Details

Date Published: 28 August 2019
PDF: 4 pages
Proc. SPIE 11199, Seventh European Workshop on Optical Fibre Sensors, 1119927 (28 August 2019); doi: 10.1117/12.2540342
Show Author Affiliations
A. Minardo, Univ. degli Studi della Campania Luigi Vanvitelli (Italy)
A. Coscetta, Univ. degli Studi della Campania Luigi Vanvitelli (Italy)
E. Catalano, Univ. degli Studi della Campania Luigi Vanvitelli (Italy)
E. Cerri, Univ. degli Studi della Campania Luigi Vanvitelli (Italy)
L. Zeni, Univ. degli Studi della Campania Luigi Vanvitelli (Italy)


Published in SPIE Proceedings Vol. 11199:
Seventh European Workshop on Optical Fibre Sensors
Kyriacos Kalli; Sinead O. O'Keeffe; Gilberto Brambilla, Editor(s)

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