Application of two-mode fiber in voltage sensor

被引：5

作者：

王河林 ^{[1
]}

毕卫红 ^{[1
]}

杨爱军 ^{[2
]}

刘丰 ^{[1
]}

机构：

[1] College of Information and Engineering, Yanshan University, Qinhuangdao 066004 2. College of Mathematics and Information Science, Hebei Normal University, Shijiazhuang 050016

来源：

Chinese Optics Letters | 2006年 / 11期

基金：

中国国家自然科学基金;

关键词：

mode;

D O I：

暂无

中图分类号：

TN253 [光纤元件]; TP212.1 [物理传感器];

学科分类号：

0702 ; 070207 ; 080202 ;

摘要：

A new mode patter’s demodulation technique is put forward. Researches of experiment and theory show that the coupling efficiency of two kinds of different fibers depends on the relative offset between the two fibers when the core diameter of the information pick-up fiber is a little smaller than the major semi-axes of the elliptical-core two-mode fiber. Especially, when the relative offsetδ≈1, fusing splice coupling efficiency reaches peak value. Furthermore, based on the new demodulation scheme, the sine voltage signal applied on the piezoelectric lead zirconate titanate (PZT) is obtained and the detection precision of the system is within±0.2% when the voltage changes between 0.1 and 20 V.

引用

页码：631 / 632

页数：2

共 10 条

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