Temperature-insensitive and intensity-modulated embedded photonic-crystal-fiber modal-interferometer-based microdisplacement sensor

被引：41

作者：

Dong, Bo ^{[1
]}

Hao, Emily Jianzhong ^{[1
]}

机构：

[1] Inst Infocomm Res, RF & Opt Dept, Singapore 138632, Singapore

来源：

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS | 2011年 / 28卷 / 10期

关键词：

DISPLACEMENT;

D O I：

10.1364/JOSAB.28.002332

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We propose and demonstrate a temperature-insensitive and intensity-modulated embedded photonic-crystal-fiber (PCF) modal-interferometer-based microdisplacement sensor. The embedded PCF sensor has the structure of single-mode-fiber (SMF)-PCF-SMF, with a core offset at one splice joint. With the structure embedded in a cured carbon-fiber-composite-laminate-based simple-supported beam, the applied microdisplacement can be measured by monitoring its extinction ratio variation, while the extinction ratio variation is independent of the temperature variation and bending-induced strain. The sensitivity reaches 0.0024 dB/mu m, the measurement resolution reaches 42 mu m, and the dynamic measurement range is within the range of 0-200 Hz. (C) 2011 Optical Society of America

引用

页码：2332 / 2336

页数：5

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