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Proceedings Paper

Fluid-filled microstructured optical fibers and switching applications
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Paper Abstract

We filled a refractive index matching liquid into the air holes of a Ge-doped solid-core microstructured optical fiber (MOF) with a fiber Bragg grating (FBG) to investigate its switching functions. A type of thermo-optic in-fiber switch based on the tunable bandgap effect was demonstrated in the fluid-filled FBG at the Bragg wavelength of 830nm, and its extinction ratio depends strongly on the reflectivity of the FBG. Another type of optical switch with an extinction ratio of 30 dB was developed in the fluid-filled MOF at a long wavelength of 1200 or 1400nm, attributing to the absorption of the filled liquid. Such two types of switches can turn on/off the light transmission via a small temperature adjustment of ±5 or ±10ºC, respectively, and will find useful applications in all-fiber optical communication systems.

Paper Details

Date Published: 5 October 2009
PDF: 4 pages
Proc. SPIE 7503, 20th International Conference on Optical Fibre Sensors, 75035W (5 October 2009); doi: 10.1117/12.835040
Show Author Affiliations
Yiping Wang, Univ. of Southampton (United Kingdom)
The Hong Kong Polytechnic Univ. (Hong Kong, China)
Institute of Photonic Technology (Germany)
Wei Jin, The Hong Kong Polytechnic Univ. (Hong Kong, China)
Long Jin, The Hong Kong Polytechnic Univ. (Hong Kong, China)
Xiaoling Tan, The Hong Kong Polytechnic Univ. (Hong Kong, China)
Hartmut Bartelt, Institute of Photonic Technology (Germany)
Wolfgang Ecke, Institute of Photonic Technology (Germany)
Klaus Moerl, Institute of Photonic Technology (Germany)
Hartmut Lehmann, Institute of Photonic Technology (Germany)
Jens Kobelke, Institute of Photonic Technology (Germany)
Kerstin Schroeder, Institute of Photonic Technology (Germany)
Reinhardt Willsch, Institute of Photonic Technology (Germany)
Manfred Rothhardt, Institute of Photonic Technology (Germany)
Liye Shan, Institute of Photonic Technology (Germany)
Sven Brueckner, Institute of Photonic Technology (Germany)
David J. Richardson, Univ. of Southampton (United Kingdom)


Published in SPIE Proceedings Vol. 7503:
20th International Conference on Optical Fibre Sensors
Julian D. C. Jones, Editor(s)

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