Anti-bending Long Period Grating in Embedded-core Optical Fiber

被引:0
|
作者
Li, Ping [1 ]
Ye, Peng [1 ]
Wang, Mingjie [1 ]
Yang, Min [1 ]
Zhu, Zheng [1 ]
Shi, Jinhui [1 ]
Fu, Jianan [1 ]
Guan, Chunying [1 ]
机构
[1] Harbin Engn Univ, Coll Sci, Key Lab In Fiber Integrated Opt, Minist Educ, Harbin 150001, Heilongjiang, Peoples R China
基金
中国国家自然科学基金; 中国博士后科学基金;
关键词
Long period fiber grating; optical fiber Sensor; bending measurement; embedded-core optical fiber; REFRACTIVE-INDEX; SENSOR; WRITTEN;
D O I
10.1117/12.2326947
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 novel anti-bending long period grating (LPG) in an embedded-core hollow optical fiber (ECOF) is proposed and experimentally demonstrated. A piece of ECOF was rotated by 180 degrees around the geometrical center of the fiber, and then it and other ECOF were aligned along the fiber core and spliced. And a LPG, the center of which is the fusion splicing point, was fabricated in the ECOF by using a high-frequency CO2 laser to form an anti-bending sensor. The dependence of the resonant peak on the bending was studied. Experimental results show that the maximum sensitivity of bending is only 0.47 nm/m(-1).
引用
收藏
页数:4
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