Fabrication of Phase-Shifted Long-Period Fiber Grating and Its Application to Strain Measurement

被引：24

作者：

Wang, Peng ^{[1
]}

Xian, Lunlun ^{[1
]}

Li, Hongpu ^{[2
]}

机构：

[1] Shizuoka Univ, Grad Sch Sci & Technol, Shizuoka 4368650, Japan

[2] Shizuoka Univ, Fac Engn, Shizuoka 4368650, Japan

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2015年 / 27卷 / 05期

基金：

日本学术振兴会;

关键词：

Long-period fiber grating; phase-shifted grating; strain sensor; TEMPERATURE-MEASUREMENT; DESIGN; SENSOR;

D O I：

10.1109/LPT.2014.2385067

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：

Several kinds of phase-shifted long-period gratings (LPGs) have been fabricated using a high-repetition-rate CO2 laser, where both the grating and the inserted phase shift are simultaneously produced in a commonly used single-mode fiber. Furthermore, using one of the fabricated phase-shifted LPGs, a temperature-insensitive sensor that allows for large axial strain measurement with a value up to 7600 mu epsilon, is proposed and first demonstrated. Measurement accuracy for the strain ranging from 340 to 7600 mu epsilon is estimated to be +/- 30 mu epsilon, while the temperature is changed in a range of 20 degrees C-140 degrees C.

引用

页码：557 / 560

页数：4

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