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Proceedings Paper

Microfiber Bragg grating inscribed using 193nm excimer laser for refractive index sensing
Author(s): Yang Ran; Li-Peng Sun; Shuai Gao; Zhan Quan; Jie Li; Long Jin; Bai-Ou Guan
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Paper Abstract

The inscription of fiber Bragg gratings was demonstrated by 193 nm ArF excimer laser in microfibers drawn from the standard single mode telecommunication fiber. Fiber Bragg gratings are directly inscribed in a series of microfibers with diameter ranged from ~10μm to 3.3 μm without any treatment to photosensitize the microfibers such as hydrogen loading, etc. Four reflection peaks are observed where three correspond to high order mode resonances. The resonance wavelength depends on the fiber diameter and it sharply blueshifts when the diameter is decreased below 10 μm. The gratings are characterized for their response to ambient refractive index. The higher order mode resonance exhibits higher sensitivity to refractive index.

Paper Details

Date Published: 31 January 2012
PDF: 6 pages
Proc. SPIE 8351, Third Asia Pacific Optical Sensors Conference, 835113 (31 January 2012); doi: 10.1117/12.915876
Show Author Affiliations
Yang Ran, Jinan Univ. (China)
Li-Peng Sun, Jinan Univ. (China)
Shuai Gao, Jinan Univ. (China)
Zhan Quan, Jinan Univ. (China)
Jie Li, Jinan Univ. (China)
Long Jin, Jinan Univ. (China)
Bai-Ou Guan, Jinan Univ. (China)

Published in SPIE Proceedings Vol. 8351:
Third Asia Pacific Optical Sensors Conference
John Canning; Gangding Peng, Editor(s)

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