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Proceedings Paper

Strain characterization of suspended-core fiber tapers
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Paper Abstract

Suspended core fiber tapers with different cross sections (from 70μm to 120μm diameter) were produced by filament heating. Before obtaining the taper, the spectral behavior of the suspended core fiber presents multimode interference. When the taper is made an intermodal interference is observed. This effect is clearly visible for high taper reduction. The spectral response of the microtaper inside the suspended core fiber is similar to a beat of two interferometers. The microtaper was subjected to strain, and an increase of sensitivity with the reduction of the transverse area was observed. When the taper was immersed in liquids with different refractive indices or subjected to temperature variations, no spectral change occurred.

Paper Details

Date Published: 25 April 2012
PDF: 8 pages
Proc. SPIE 8426, Microstructured and Specialty Optical Fibres, 84260G (25 April 2012); doi: 10.1117/12.922812
Show Author Affiliations
Ricardo M. André, INESC Porto (Portugal)
Univ. do Porto (Portugal)
Susana O. Silva, INESC Porto (Portugal)
Univ. do Porto (Portugal)
Martin Becker, Institut für Photonische Technologien e.V. (Germany)
Kay Schuster, Institut für Photonische Technologien e.V. (Germany)
M. Rothhardt, Institut für Photonische Technologien e.V. (Germany)
H. Bartelt, Institut für Photonische Technologien e.V. (Germany)
Manuel B. Marques, INESC Porto (Portugal)
Univ. do Porto (Portugal)
Orlando Frazão, INESC Porto (Portugal)

Published in SPIE Proceedings Vol. 8426:
Microstructured and Specialty Optical Fibres
Kyriacos Kalli; Alexis Mendez, Editor(s)

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