Temperature-independent bending sensor with tilted fiber Bragg grating interacting with multimode fiber

被引：105

作者：

Jin, Y. X. ^{[1
,2
]}

Chan, C. C. ^{[1
]}

Dong, X. Y. ^{[2
]}

Zhang, Y. F. ^{[1
]}

机构：

[1] Nanyang Technol Univ, Sch Chem & Biomed Engn, Div Bioengn, Singapore 637457, Singapore

[2] China Jiliang Univ, Inst Optoelect Technol, Hangzhou 310018, Zhejiang, Peoples R China

来源：

OPTICS COMMUNICATIONS | 2009年 / 282卷 / 19期

关键词：

Fiber optic sensor; Tilted fiber Bragg gratings; Bending measurement;

D O I：

10.1016/j.optcom.2009.06.058

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A new type fiber bending sensor based on a tilted fiber Bragg grating (TFBG) interacting with a multimode fiber (MMF) is presented. The sensing head is formed by insertion of a small section of MMF between a single-mode fiber (SMF) and the TFBG. The average reflective power in the cladding modes decreases with the increase of curvature. The measurement range of the curvature from 0 to 2.5 m(-1) with a measurement sensitivity of -802.4 nW/m(-1) is achieved. The proposed sensor is also proved as temperature-independent from the experimental investigation. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：3905 / 3907

页数：3

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