基于偏振模干涉的光纤光栅动态应变解调系统

J4 ›› 2012, Vol. 29 ›› Issue (4): 507-512.

• 纤维与波导光学 • 上一篇

基于偏振模干涉的光纤光栅动态应变解调系统

郝文良¹,甄胜来¹,曹志刚¹,吕亮¹,彭军²,俞本立¹

1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；
2北京市微技术研究所，北京 100200

收稿日期:2011-05-16 修回日期:2011-06-02 出版日期:2012-07-28 发布日期:2012-07-01
通讯作者: 俞本立（1963-）安徽五河人，教授，博导，主要从事光传感和光通信器的研究。 E-mail:benliyu@ahu.edu.cn
作者简介:郝文良（1972-）河北卢龙人，博士，从事光纤传感研究。E-mail：hwl1972@gmail.com
基金资助:
国家自然科学基金（60940022）, 教育部博士点基金（20093401110002）,高校省级优秀青年人才基金（2011SQRL015）

A fiber Bragg grating interrogating dynamic strains sensor system using interference of polarized mode

Hao Wenliang¹, Zhen Shenglai¹, Cao Zhigang¹, lu Liang¹, Peng Jun², Yu Benli¹

1 Key Laboratory of Opto-electronic Information Acquisition and Manipulation of Ministry of Education， Anhui University, Hefei 230601, China；
2 Beijing Institute of Micro Technology, Beijing 100200， China

Received:2011-05-16 Revised:2011-06-02 Published:2012-07-28 Online:2012-07-01

摘要/Abstract

摘要：

基于保偏光纤中正交偏振模干涉，提出了一种简单、新颖的光纤光栅动态应变解调系统，并且通过实验证实了该方案的可行性。该解调系统光学核心部分仅由一段带有反射镜的高双折射光纤和一个光纤起偏器构成。实验中动态应变解调分辨率达到了，频率范围为0.1Hz~7.9kHz微纳振动幅度信号获得了保真拾取。实验表明，该系统适合宽频率范围、微纳幅度的动态应变检测，为光纤光栅传感提供了一种简单、经济、适用范围更广的解调方案。

关键词: 纤维与波导光学, 偏振模干涉, 光纤光栅, 动态应变, 传感系统

Abstract:

A simple novel fiber Bragg grating interrogating system is proposed and experimentally demonstrated based on interference of polarized Mode. The essential part of the system is only comprised of a high birefringence fiber with fiber reflector and a fiber polarizer. The vibration micro-nano signals from 0.1Hz to 7.9 kHz have been picked up fidelity; Measurements of dynamic strains with resolutions of in 50Hz bandwidth were demonstrated. Experiments show that the system is suitable for wide frequency range, micro-nano range of dynamic strain detection. This system potentially offers a low-cost and high-performance solution for the interrogation of FBG sensor.

Key words: fiber and waveguide optics, interference of polarized mode, fiber Bragg grating, dynamic strain, interrogating sensor system

中图分类号:

TN253

郝文良甄胜来曹志刚吕亮彭军俞本立. 基于偏振模干涉的光纤光栅动态应变解调系统[J]. J4, 2012, 29(4): 507-512.

Hao Wenliang, Zhen Shenglai, Cao Zhigang, lu Liang, Peng Jun, Yu Benli. A fiber Bragg grating interrogating dynamic strains sensor system using interference of polarized mode[J]. J4, 2012, 29(4): 507-512.

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基于偏振模干涉的光纤光栅动态应变解调系统

A fiber Bragg grating interrogating dynamic strains sensor system using interference of polarized mode

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