Microdisplacement Sensor Based on Tilted Fiber Bragg Grating Transversal Load Effect

被引：24
|
作者：
Jiang, Qi [1 ]
Hu, Debo [1 ]
机构：
[1] Shandong Univ, Sch Control Sci & Engn, Jinan 250061, Shandong, Peoples R China
来源：
IEEE SENSORS JOURNAL | 2011年 / 11卷 / 09期
基金：
美国国家科学基金会;
关键词：
Displacement; tilted fiber Bragg grating (TFBG); transmission spectrum;
D O I：
10.1109/JSEN.2010.2103399
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：
In this paper, a simple and novel micro-displacement sensor based on tilted fiber Bragg grating (TFBG) is proposed and studied. The transversal compression imposed on TFBG causes the changes of grating angle, index, and length, resulting in a considerable spectrum change of the cladding modes. The spectrum amplitude, extinction ratio, and central wavelength are analyzed with the change of the transversal compression. These three parameters are found to have repeatable linear relationship with the transversal load. Moreover, the extinction ratio exhibits a high displacement sensitivity of 18 dB/mm.
引用
收藏
页码：1776 / 1779
页数：4
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