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

页码：768 / 771

页数：4

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