Fiber bending sensor based on a two mode fiber

被引：4
|
作者：
Chen, Daru [1 ,2 ]
Xu, Fei [1 ]
Hu, Gufeng [1 ]
Chen, Lingxia [1 ]
Peng, Baojin [1 ]
机构：
[1] Zhejiang Normal Univ, Inst Informat Opt, Jinhua 321004, Peoples R China
[2] Hong Kong Polytech Univ, Dept Elect Engn, Photon Res Ctr, Kowloon, Hong Kong, Peoples R China
来源：
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS | 2012年 / 54卷 / 04期
关键词：
two mode fiber; fiber bending sensor; mode interference; bending curvature;
D O I：
10.1002/mop.26734
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：
A fiber bending sensor by splicing a segment of two mode fiber to the single mode fiber is proposed.The two mode fiber with an external diameter (fiber core diameter) of 145 mu m (17.65 mu m) can only support the fundamental mode (LP01 mode) and the second mode (LP11 mode), which results in an interfering spectrum of the fiber bending sensor. The interfering spectrum has an extinction ratio of about 10 dB in 1.55 mu m window, and the fiber bending curvature is measured corresponding to the shift of the interfering spectrum. (c) 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:10471049, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26734
引用
收藏
页码：1047 / 1049
页数：3
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