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Proceedings Paper

Side-coupled optical fiber devices for sensing applications
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Paper Abstract

We demonstrate experimentally the light coupling between two types of optical fiber devices, including the long period fiber gratings (LPFGs) and fiber tapers. Optical power transfer is achieved through evanescent field coupling between the cladding modes. The output spectra from the LPFG couplers exhibit band-pass/band-rejection pattern, which could be used as add/drop filters. The output spectra from the fiber taper couplers show an interference pattern similar to a Mach-Zehnder interferometer. By fixing the fiber devices in a capillary glass tube, we demonstrated a miniaturized coupler for displacement sensing.

Paper Details

Date Published: 28 April 2010
PDF: 9 pages
Proc. SPIE 7682, Photonic Microdevices/Microstructures for Sensing II, 76820K (28 April 2010); doi: 10.1117/12.850658
Show Author Affiliations
Yinan Zhang, Missouri Univ. of Science and Technology (United States)
Xinwei Lan, Missouri Univ. of Science and Technology (United States)
Tao Wei, Missouri Univ. of Science and Technology (United States)
Hongbiao Duan, Missouri Univ. of Science and Technology (United States)
Hai Xiao, Missouri Univ. of Science and Technology (United States)


Published in SPIE Proceedings Vol. 7682:
Photonic Microdevices/Microstructures for Sensing II
Xudong Fan; Hai Xiao; Anbo Wang, Editor(s)

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