Selectively Infiltrated PCF for Directional Bend Sensing With Large Bending Range

被引：18
作者：
Chen, H. F. [1 ,2 ,3 ,4 ]
Wang, Ying [2 ,5 ,6 ]
Wang, D. N. [1 ,2 ,3 ]
机构：
[1] China Jiliang Univ, Coll Opt & Elect Technol, Hangzhou 310018, Zhejiang, Peoples R China
[2] Hong Kong Polytech Univ, Dept Elect Engn, Hong Kong, Hong Kong, Peoples R China
[3] Hong Kong Polytech Univ, Shenzhen Res Inst, Hong Kong, Hong Kong, Peoples R China
[4] Zhejiang Univ, State Key Lab Modern Opt Instrumentat, Hangzhou 310027, Zhejiang, Peoples R China
[5] Wuhan Inst Technol, Lab Opt Informat Technol, Wuhan 430073, Peoples R China
[6] Wuhan Inst Technol, Sch Sci, Wuhan 430073, Peoples R China
来源：
IEEE PHOTONICS TECHNOLOGY LETTERS | 2015年 / 27卷 / 05期
基金：
中国国家自然科学基金;
关键词：
Optical fiber sensor; selectively infiltrated photonic crystal fiber; bend sensing; PHOTONIC CRYSTAL FIBER; LONG-PERIOD FIBER; OPTICAL-FIBER; SENSOR; GRATINGS; CURVATURE;
D O I：
10.1109/LPT.2014.2382654
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A directional bend sensor based on selectively infiltrated photonic crystal fiber is demonstrated. The device is fabricated by use of femtosecond laser micromachining technique and fusion splicing of photonic crystal fiber with single-mode fiber. By infiltrating refractive index liquid into one of the air holes of the photonic crystal fiber, the core mode can be coupled into the higher order liquid rod mode, thus producing a resonant dip in the transmission spectrum of the device. Such a dip wavelength is sensitive to both the bending curvature and the direction, and has a linear response to curvature within a large range from 0 to 10.7 m(-1).
引用
收藏
页码：502 / 505
页数：4
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