Strain, torsion and refractive index sensors based on helical long period fibre grating inscribed in small-core fibre for structural condition monitoring

Cailing Fu; Yi Qing Ni; Tong Sun; Yiping Wang; Siqi Ding; Miodrag Vidakovic

doi:10.1177%2F1369433221992485

Strain, torsion and refractive index sensors based on helical long period fibre grating inscribed in small-core fibre for structural condition monitoring

Cailing Fu, Yi Qing Ni, Tong Sun, Yiping Wang, Siqi Ding, Miodrag Vidakovic

Research output: Journal article publication › Journal article › Academic research › peer-review

12 Citations (Scopus)

Abstract

This study is intended to develop long period fibre grating sensors for potential applications in environmental and durability monitoring of coastal structures. High-quality helical long period fibre gratings (HLPFGs) are inscribed in different types of small-core single mode fibre (SMF) by use of hydrogen-oxygen flame heating technique. A detailed investigation of the effect of core diameter on their transmission spectrum and optimum length of the HLPFG has been pursued. A longer length is required to achieve the same coupling attenuation in a smaller-core SMF than that of a larger-core fibre. The strain, torsion and refractive index (RI) properties of the HLPFG is investigated experimentally to develop a high-sensitivity sensor. The experimental results show that the strain sensitivity could be enhanced by means of employing a larger-core diameter SMF. Moreover, the HLFPGs are also sensitive to the torsion and external RI. Hence, such HLFPGs have great potential for sensing applications.

Original language	English
Pages (from-to)	1248-1255
Number of pages	8
Journal	Advances in Structural Engineering
Volume	24
Issue number	6
DOIs	https://doi.org/10.1177%2F1369433221992485
Publication status	Published - Apr 2021

Keywords

coastal structures
Fibre optic components
fibre optic sensors
helical long period fibre gratings
structural health monitoring

ASJC Scopus subject areas

Civil and Structural Engineering
Building and Construction

More information

10.1177%2F1369433221992485

Cite this

@article{a567c7ad40aa49fab1662f4fb554f32a,

title = "Strain, torsion and refractive index sensors based on helical long period fibre grating inscribed in small-core fibre for structural condition monitoring",

abstract = "This study is intended to develop long period fibre grating sensors for potential applications in environmental and durability monitoring of coastal structures. High-quality helical long period fibre gratings (HLPFGs) are inscribed in different types of small-core single mode fibre (SMF) by use of hydrogen-oxygen flame heating technique. A detailed investigation of the effect of core diameter on their transmission spectrum and optimum length of the HLPFG has been pursued. A longer length is required to achieve the same coupling attenuation in a smaller-core SMF than that of a larger-core fibre. The strain, torsion and refractive index (RI) properties of the HLPFG is investigated experimentally to develop a high-sensitivity sensor. The experimental results show that the strain sensitivity could be enhanced by means of employing a larger-core diameter SMF. Moreover, the HLFPGs are also sensitive to the torsion and external RI. Hence, such HLFPGs have great potential for sensing applications.",

keywords = "coastal structures, Fibre optic components, fibre optic sensors, helical long period fibre gratings, structural health monitoring",

author = "Cailing Fu and Ni, \{Yi Qing\} and Tong Sun and Yiping Wang and Siqi Ding and Miodrag Vidakovic",

note = "Funding Information: The author(s) disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: The work described in this paper was supported by a grant (TRS) from the Research Grants Council of the Hong Kong Special Administrative Region, China (Project No. T22/502/18), a grant from the National Science Foundation of China (61905155), and a grant from The Hong Kong Polytechnic University (Project No. 1-BBAG). The authors would also like to appreciate the funding support by the Innovation and Technology Commission of the Hong Kong SAR Government (Project No. K-BBY1). Publisher Copyright: {\textcopyright} The Author(s) 2021. Copyright: Copyright 2021 Elsevier B.V., All rights reserved.",

year = "2021",

month = apr,

doi = "10.1177\%2F1369433221992485",

language = "English",

volume = "24",

pages = "1248--1255",

journal = "Advances in Structural Engineering",

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Strain, torsion and refractive index sensors based on helical long period fibre grating inscribed in small-core fibre for structural condition monitoring. / Fu, Cailing; Ni, Yi Qing; Sun, Tong et al.
In: Advances in Structural Engineering, Vol. 24, No. 6, 04.2021, p. 1248-1255.

Research output: Journal article publication › Journal article › Academic research › peer-review

TY - JOUR

T1 - Strain, torsion and refractive index sensors based on helical long period fibre grating inscribed in small-core fibre for structural condition monitoring

AU - Fu, Cailing

AU - Ni, Yi Qing

AU - Sun, Tong

AU - Wang, Yiping

AU - Ding, Siqi

AU - Vidakovic, Miodrag

N1 - Funding Information: The author(s) disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: The work described in this paper was supported by a grant (TRS) from the Research Grants Council of the Hong Kong Special Administrative Region, China (Project No. T22/502/18), a grant from the National Science Foundation of China (61905155), and a grant from The Hong Kong Polytechnic University (Project No. 1-BBAG). The authors would also like to appreciate the funding support by the Innovation and Technology Commission of the Hong Kong SAR Government (Project No. K-BBY1). Publisher Copyright: © The Author(s) 2021. Copyright: Copyright 2021 Elsevier B.V., All rights reserved.

PY - 2021/4

Y1 - 2021/4

N2 - This study is intended to develop long period fibre grating sensors for potential applications in environmental and durability monitoring of coastal structures. High-quality helical long period fibre gratings (HLPFGs) are inscribed in different types of small-core single mode fibre (SMF) by use of hydrogen-oxygen flame heating technique. A detailed investigation of the effect of core diameter on their transmission spectrum and optimum length of the HLPFG has been pursued. A longer length is required to achieve the same coupling attenuation in a smaller-core SMF than that of a larger-core fibre. The strain, torsion and refractive index (RI) properties of the HLPFG is investigated experimentally to develop a high-sensitivity sensor. The experimental results show that the strain sensitivity could be enhanced by means of employing a larger-core diameter SMF. Moreover, the HLFPGs are also sensitive to the torsion and external RI. Hence, such HLFPGs have great potential for sensing applications.

AB - This study is intended to develop long period fibre grating sensors for potential applications in environmental and durability monitoring of coastal structures. High-quality helical long period fibre gratings (HLPFGs) are inscribed in different types of small-core single mode fibre (SMF) by use of hydrogen-oxygen flame heating technique. A detailed investigation of the effect of core diameter on their transmission spectrum and optimum length of the HLPFG has been pursued. A longer length is required to achieve the same coupling attenuation in a smaller-core SMF than that of a larger-core fibre. The strain, torsion and refractive index (RI) properties of the HLPFG is investigated experimentally to develop a high-sensitivity sensor. The experimental results show that the strain sensitivity could be enhanced by means of employing a larger-core diameter SMF. Moreover, the HLFPGs are also sensitive to the torsion and external RI. Hence, such HLFPGs have great potential for sensing applications.

KW - coastal structures

KW - Fibre optic components

KW - fibre optic sensors

KW - helical long period fibre gratings

KW - structural health monitoring

UR - https://www.scopus.com/pages/publications/85100560967

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DO - 10.1177%2F1369433221992485

M3 - Journal article

AN - SCOPUS:85100560967

SN - 1369-4332

VL - 24

SP - 1248

EP - 1255

JO - Advances in Structural Engineering

JF - Advances in Structural Engineering

IS - 6

ER -

Strain, torsion and refractive index sensors based on helical long period fibre grating inscribed in small-core fibre for structural condition monitoring

Abstract

Keywords

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