Long period fiber grating and high sensitivity refractive index sensor based on hollow eccentric optical fiber

被引：45
|
作者：
Guan, Chunying [1 ,2 ]
Tian, Xiaozhong [1 ]
Li, Shuqiang [1 ]
Zhong, Xing [1 ]
Shi, Jinhui [1 ]
Yuan, Libo [1 ]
机构：
[1] Harbin Engn Univ, Coll Sci, Key Lab In Fiber Integrated Opt, Minist Educ, Harbin 150001, Peoples R China
[2] Univ Southampton, Optoelect Res Ctr, Southampton SO17 1BJ, Hants, England
来源：
SENSORS AND ACTUATORS B-CHEMICAL | 2013年 / 188卷
基金：
中国国家自然科学基金;
关键词：
period gratings; Optical fiber sensors; Microstructured fibers; Refractometry; PHOTONIC-CRYSTAL-FIBER; CO2-LASER;
D O I：
10.1016/j.snb.2013.07.086
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
We have demonstrated experimentally a long period fiber grating (LPFG) written in a hollow eccentric optical fiber (HEOF). A high-quality LPFG with no structural deformation was fabricated using a highfrequency CO2 laser with a low energy density of 0.896 J/mm(2). The LPFG writing parameters showed only a weak dependence on orientation of the fiber core to the writing beam. The liquid-filled HEOF LPFG has a high refractive index sensitivity of 1005 nm/RIU over a refractive index range of 1.422-1.441. The good performance and easy fabrication of the HEOF LPFG indicate that it is a promising platform for novel in-fiber microfluidic devices. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：768 / 771
页数：4
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