Fabrication of Long Period Fiber Gratings Based on Embedded-Core Hollow Optical Fiber

被引：0
|
作者：
Guan, Chunying [1 ]
Zhong, Xing [1 ]
Tian, Xiaozhong [1 ]
Li, Shuqiang [1 ]
Yuan, Libo [1 ]
机构：
[1] Harbin Engn Univ, Minist Educ, Coll Sci, Key Lab In Fiber Integrated Opt, Harbin 150001, Peoples R China
来源：
23RD INTERNATIONAL CONFERENCE ON OPTICAL FIBRE SENSORS | 2014年 / 9157卷
关键词：
Long period fiber grating; Optical fiber; Grating; Embedded-core hollow optical fiber; REFRACTIVE-INDEX SENSOR;
D O I：
10.1117/12.2059040
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We propose and experimentally demonstrate a novel long period fiber grating (LPFG) in an embedded-core hollow optical fiber (ECHOF). Without the structural deformation of the air hole and the fiber core, the high-quality LPFG can be fabricated within a few scanning cycles by a high-frequency CO2 laser with a low energy density of 0.896J/mm(2). The ECHOF LPFG reveals a high temperature sensitivity of 50.2 pm/degrees C and a low strain sensitivity of 0.4 pm/mu epsilon. Due to the good performance and easy fabrication, the ECHOF LPFG will be important to develop novel in-fiber devices.
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页数：4
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