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Proceedings Paper

Control of the strain sensitivity using a suspended core photonic crystal fiber sensing head
Author(s): S. Rota-Rodrigo; M. Lopez-Amo; J. Kobelke; K. Schuster; J. L. Santos; O. Frazão
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Paper Abstract

In this work a strain sensor based on a suspended core fiber is proposed. The sensor comprises a suspended core PCF between SMFs and is based on the multimode interference generated in these transitions. A strain sensitivity study for different sensing heads and stage separation lengths was carried out showing a sensitivity of -2.42 pm/με for the best case. Also the sensing head was tested for curvature and temperature, showing in the first case that it is insensitive to curvature effects, and secondly, that for small sensor lengths it was insensitive to temperature variations.

Paper Details

Date Published: 2 June 2014
PDF: 4 pages
Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 91571Y (2 June 2014); doi: 10.1117/12.2055081
Show Author Affiliations
S. Rota-Rodrigo, Univ. Pública de Navarra (Spain)
M. Lopez-Amo, Univ. Pública de Navarra (Spain)
J. Kobelke, Institut für Photonische Technologien e.V. (Germany)
K. Schuster, Institut für Photonische Technologien e.V. (Germany)
J. L. Santos, INESC Porto (Portugal)
Univ. do Porto (Portugal)
O. Frazão, INESC Porto (Portugal)
Univ. do Porto (Portugal)

Published in SPIE Proceedings Vol. 9157:
23rd International Conference on Optical Fibre Sensors
José M. López-Higuera; Julian D. C. Jones; Manuel López-Amo; José Luis Santos, Editor(s)

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