Fiber-optic bending vector sensor based on Mach -Zehnder interferometer exploiting lateral-offset and up-taper

被引：158

作者：

Zhang, Shanshan ^{[1
]}

Zhang, Weigang ^{[1
]}

Gao, Shecheng ^{[1
]}

Geng, Pengcheng ^{[1
]}

Xue, Xiaolin ^{[1
]}

机构：

[1] Nankai Univ, Inst Modern Opt, Minist Educ, Key Lab Opt Informat Sci & Technol, Tianjin 300071, Peoples R China

来源：

OPTICS LETTERS | 2012年 / 37卷 / 21期

关键词：

OPTICAL-FIBER; CURVATURE; GRATINGS; MODES;

D O I：

10.1364/OL.37.004480

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A simple, compact, and highly sensitive optical fiber directional bend sensor is presented. This device consists of a lateral-offset splicing joint and an up-taper formed through excessive fusion splicing method. The lateral-offset splicing breaks the cylindrical symmetry of the fiber and defines a pair of directions along which the bending response of the Mach-Zehnder interferometer transmission spectrum is different and thus could be used for bending vector measurement. For a curvature range from -3 to 3 m(-1), the bending sensitivities at 1463.86 nm and 1548.41 nm reach 11.987 nm/m(-1) and 8.697 nm/m(-1), respectively. (C) 2012 Optical Society of America

引用

收藏

页码：4480 / 4482

页数：3

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