An optical-fiber bending sensor using two-mode fibers with an off-center core

被引：8

作者：

Lisbôa, O. ^{[1
]}

Jen, C.K. ^{[2
]}

机构：

[1] Department of Electrical Engineering, McGill University, Montreal, QC H3A 2A7, Canada

[2] IMI, National Research Council of Canada, Boucherville, QC J4B 6Y4, Canada

来源：

Smart Materials and Structures | 1994年 / 3卷 / 02期

关键词：

D O I：

10.1088/0964-1726/3/2/012

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The sensing mechanism of an optical-fiber bending sensor based on the interaction between the frequency-shifted two modes in a two-mode fiber with an off-center core is presented. When the fiber is bent, a tension or a compression field appears in the fiber which causes a preferential net strain due to the asymmetry induced by the off-center core. Both theoretical and experimental results show that the bending in a specific direction can be sensed. Approaches to enhance the sensitivity and the use of this sensor as an accelerometer are also provided. © 1994 IOP Publishing Ltd.

引用

页码：164 / 170