In-fiber twist sensor based on a fiber Bragg grating with 81° tilted structure

被引：99
|
作者：
Chen, X. [1 ]
Zhou, K. [1 ]
Zhang, L. [1 ]
Bennion, I. [1 ]
机构：
[1] Aston Univ, Photon Res Grp, Birmingham B4 7ET, W Midlands, England
来源：
IEEE PHOTONICS TECHNOLOGY LETTERS | 2006年 / 18卷 / 21-24期
关键词：
fiber grating; optical sensor; polarization mode split; twist sensor;
D O I：
10.1109/LPT.2006.887371
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：
We report a strong polarization dependent coupling behavior of fiber Bragg gratings with excessively tilted structures up to 81 degrees. This unique property has been utilized to implement a novel twist sensor, showing high torsion sensitivity. The twist induced light coupling interchange between the two birefringence modes makes it possible to interrogate such a sensor using low-cost intensity demodulation technique.
引用
收藏
页码：2596 / 2598
页数：3
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