一种基于套嵌光纤光栅的高灵敏度光纤电流传感器

J4 ›› 2016, Vol. 33 ›› Issue (5): 598-603.

一种基于套嵌光纤光栅的高灵敏度光纤电流传感器

李贺飞, 徐翠萍, 田春雨，宫奎，冯飞，徐峰，甄胜来，俞本立

安徽大学光电信息获取与控制教育部重点实验室，安徽合肥 230601

收稿日期:2015-05-18 修回日期:2015-05-27 出版日期:2016-09-28 发布日期:2016-09-28
通讯作者: 李贺飞（1989-），安徽人，研究生，从事集成光器件的研究。 E-mail:lihefei6666@163.com
基金资助:
国家自然科学青年基金（61108076），安徽省自然科学基金项目（1308085MF91），安徽省教育厅自然科学研究重点项目（KJ2011A009）

High sensitivity Fiber-Optic Current Sensor Based on Nested Fiber Grating

Li Hefei, Xu Cuiping , Tian Chunyu, Gong Kui, Feng Fei，Xu Feng，Zhen Shenglai, Yu Benli

Key Laboratory of Opto-electronic Information Acquistion and Manipulation, Ministry of Education, Auhui University, HeFei, 230601, China

Received:2015-05-18 Revised:2015-05-27 Published:2016-09-28 Online:2016-09-28

摘要/Abstract

摘要： 提出了一种基于套嵌光纤光栅的光纤电流传感器，该传感器使用了二次曝光法制作的长周期光栅结构和布拉格光栅结构套嵌的光纤光栅作为传感元件，通过直接在光栅表面制作镍铁合金作为加热电极层，当电流通过时对光栅区域加热引起光栅光谱中心波长漂移，实现了高灵敏度的电流测量。实验结果表明，这种光纤电流传感器的电流响应灵敏度达到7.2×10-2nm/mA，且具有结构简单、体积小等优点，在高灵敏度的光纤电流检测领域具有广泛应用价值。

关键词: 纤维与导波光学；光纤电流传感器；套嵌光纤光栅；镍铁合金层；波长漂移

Abstract: We proposed and demonstrated a novel fiber-optic current sensor based on a nested fiber grating, which is composed of Bragg grating and long period grating. The surface of the nested fiber grating was sputtered with a layer of high resistance Ni-Fe alloy. The current test shows that such a sensor has a high current sensitivity of 7.2×10-2 nm/mA. Its properties of the simple structure, compact size and low-cost imply that the proposed fiber current sensor is suitable for the fiber-optic current monitoring applications.

Key words: fiber and waveguide optics; fiber-optic current sensor; nested fiber grating; Ni-Fe alloy; wavelength shift

中图分类号:

TN253

李贺飞, 徐翠萍, 田春雨，宫奎，冯飞，徐峰，甄胜来，俞本立. 一种基于套嵌光纤光栅的高灵敏度光纤电流传感器[J]. J4, 2016, 33(5): 598-603.

Li Hefei, Xu Cuiping , Tian Chunyu, Gong Kui, Feng Fei，Xu Feng，Zhen Shenglai, Yu Benli. High sensitivity Fiber-Optic Current Sensor Based on Nested Fiber Grating[J]. J4, 2016, 33(5): 598-603.

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