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Proceedings Paper

Sagnac interferometer based on a suspended twin-core fibre
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Paper Abstract

In this work, the authors present an alternative Sagnac interferometer based on a suspended twin-core fibre. Using the suspended twin-core fibre, the pattern fringe is due to the different optical paths of the light in the two cores. In this case, the value of the refractive index difference between the two cores is ~10-3, which indicates an advantage of this approach, namely the possibility to use a small length of the suspended twin-core fibre. The sensing configuration was characterized for strain, temperature, curvature and torsion, respectively.

Paper Details

Date Published: 14 May 2010
PDF: 5 pages
Proc. SPIE 7714, Photonic Crystal Fibers IV, 77140V (14 May 2010); doi: 10.1117/12.854285
Show Author Affiliations
O. Frazão, INESC Porto (Portugal)
J. M. Baptista, INESC Porto (Portugal)
Univ. da Madeira (Portugal)
J. L. Santos, INESC Porto (Portugal)
Univ. do Porto (Portugal)
Jens Kobelke, IPHT Jena (Germany)
Kay Schuster, IPHT Jena (Germany)

Published in SPIE Proceedings Vol. 7714:
Photonic Crystal Fibers IV
Kyriacos Kalli; Waclaw Urbanczyk, Editor(s)

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