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Optical Engineering

S-tapered photonic crystal fiber interferometers for refractive index sensing
Author(s): Feifei Shi; Yun Wu; Jinzhong Wan; Liancheng Zhao; Huizhong Shi
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Paper Abstract

An experimental investigation on an S-tapered photonic crystal fiber interferometer is presented. The whole fabrication process was carried out using a standard splicing machine. The interferometer shows a compact and stable structure with a waist diameter of 110 μm, taper length of 280 μm, and axial offset of 40 μm. The transmission spectra indicated that it is highly sensitive to the surrounding refractive index (RI) and insensitive to temperature. Resolutions of 3.3×10 −4 and 8.0×10 −5 RI units were achieved in the 1.33 to 1.38 and 1.38 to 1.44 range, respectively. Furthermore, its temperature dependence was only 4  pmC .

Paper Details

Date Published: 13 March 2013
PDF: 5 pages
Opt. Eng. 52(3) 035004 doi: 10.1117/1.OE.52.3.035004
Published in: Optical Engineering Volume 52, Issue 3
Show Author Affiliations
Feifei Shi, Harbin Institute of Technology (China)
Yun Wu, CNPC Bohai Drilling Engineering Co., Ltd. (China)
Jinzhong Wan, Harbin Institute of Technology (China)
Liancheng Zhao, Harbin Institute of Technology (China)
Huizhong Shi, Liaohe Petroleum Vocational & Technical College (China)


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