Curvature sensing with a D-shaped multicore fibre and Brillouin optical time-domain reflectometry

被引：20
|
作者：
Zafeiropoulou, Angeliki [1 ,2 ]
Masoudi, Ali [1 ]
Zdagkas, Apostolos [1 ]
Cooper, Laurence [2 ]
Brambilla, Gilberto [1 ]
机构：
[1] Univ Southampton, Optoelect Res Ctr, Southampton SO17 1BJ, Hants, England
[2] Fibercore, Southampton Sci Pk,Fibercore House,Univ Pkwy, Southampton SO16 7QQ, Hants, England
来源：
OPTICS EXPRESS | 2020年 / 28卷 / 02期
基金：
欧盟地平线“2020”;
关键词：
BEND MEASUREMENT; BRAGG GRATINGS; TEMPERATURE;
D O I：
10.1364/OE.383096
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A distributed curvature sensor based on Brillouin optical time-domain reflectometry interrogation technique in a D-shaped 7-core fibre is presented. By comparing the relative Brillouin frequency shift between the central core and three of the outer cores of the 7-core fibre, the curvature of various spools with different diameters is measured with a deviation from the actual value ranging between 9% and 15%. The analysis and results presented in this study show the first demonstration of distributed bend sensing using a specially designed multicore D-shaped fibre, paving the way for fully distributed 3D shape sensing. (C) 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
引用
收藏
页码：1291 / 1299
页数：9
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