A high-sensitivity strain sensor based on the core-offset fiber with a micro air bubble

Jianxin Wang; Wei Liu; Qiao Li; Wei Li; Lin Yang; Jingwei Lv; Luhui Xu; Qianqian Yin; Qiang Liu; Paul K. Chu; Chao Liu

doi:10.1016/j.optcom.2023.130235

A high-sensitivity strain sensor based on the core-offset fiber with a micro air bubble

Jianxin Wang
, Wei Liu
, Qiao Li
, Wei Li
, Lin Yang
, Jingwei Lv
, Luhui Xu
, Qianqian Yin
, Qiang Liu
, Paul K. Chu
, Chao Liu^*

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

7 Citations (Scopus)

Abstract

A highly sensitive optic-fiber strain sensor based on the air-microbubble Fabry–Perot interferometer (FPI) formed in a core-offset tapered fiber is proposed. By drawing tapers on the staggered spliced single-mode fibers, micro air bubbles with an average wall thickness of 2.6 μm are formed. The experimental results show that the sensor has a high strain sensitivity of 17.24 pm/με and good linear response in the range of 0–1500 με. A numerical simulation model is developed to study the axial strain response, and the results show that the core-offset structure increases the strain sensitivity by 46 %. In addition, the sensor has a temperature sensitivity of 3.43 pm/°C and a cross-sensitivity with strain as low as 0.199 με/°C over the range of 50–350 °C. © 2023 Elsevier B.V.

Original language	English
Article number	130235
Journal	Optics Communications
Volume	555
Online published	26 Dec 2023
DOIs	https://doi.org/10.1016/j.optcom.2023.130235
Publication status	Published - 15 Mar 2024

Funding

This work was jointly supported by Outstanding young and middle-aged research and innovation team of Northeast Petroleum University [ KYCXTD201801 ], Local Universities Reformation and Development Personnel Training Supporting Project from Central Authorities, Postdoctoral scientific research development fund of Heilongjiang Province [ LBH-Q20081 ], City University of Hong Kong Donation Research Grant [DON-RMG No. 9229021 ], City University of Hong Kong Strategic Research Grant [SRG 7005505 ], City University of Hong Kong Donation Grant [ 9220061 ], and Scientific Research Fund of Sichuan Province Science and Technology Department [ 2020YJ0137 ].

Research Keywords

Core-offset tapered fiber
Micro air bubbles
Strain sensor

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10.1016/j.optcom.2023.130235

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@article{e42079f3662848398d3a250b0599b779,

title = "A high-sensitivity strain sensor based on the core-offset fiber with a micro air bubble",

abstract = "A highly sensitive optic-fiber strain sensor based on the air-microbubble Fabry–Perot interferometer (FPI) formed in a core-offset tapered fiber is proposed. By drawing tapers on the staggered spliced single-mode fibers, micro air bubbles with an average wall thickness of 2.6 μm are formed. The experimental results show that the sensor has a high strain sensitivity of 17.24 pm/με and good linear response in the range of 0–1500 με. A numerical simulation model is developed to study the axial strain response, and the results show that the core-offset structure increases the strain sensitivity by 46 \%. In addition, the sensor has a temperature sensitivity of 3.43 pm/°C and a cross-sensitivity with strain as low as 0.199 με/°C over the range of 50–350 °C. {\textcopyright} 2023 Elsevier B.V.",

keywords = "Core-offset tapered fiber, Micro air bubbles, Strain sensor",

author = "Jianxin Wang and Wei Liu and Qiao Li and Wei Li and Lin Yang and Jingwei Lv and Luhui Xu and Qianqian Yin and Qiang Liu and Chu, \{Paul K.\} and Chao Liu",

year = "2024",

month = mar,

day = "15",

doi = "10.1016/j.optcom.2023.130235",

language = "English",

volume = "555",

journal = "Optics Communications",

issn = "0030-4018",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - A high-sensitivity strain sensor based on the core-offset fiber with a micro air bubble

AU - Wang, Jianxin

AU - Liu, Wei

AU - Li, Qiao

AU - Li, Wei

AU - Yang, Lin

AU - Lv, Jingwei

AU - Xu, Luhui

AU - Yin, Qianqian

AU - Liu, Qiang

AU - Chu, Paul K.

AU - Liu, Chao

PY - 2024/3/15

Y1 - 2024/3/15

N2 - A highly sensitive optic-fiber strain sensor based on the air-microbubble Fabry–Perot interferometer (FPI) formed in a core-offset tapered fiber is proposed. By drawing tapers on the staggered spliced single-mode fibers, micro air bubbles with an average wall thickness of 2.6 μm are formed. The experimental results show that the sensor has a high strain sensitivity of 17.24 pm/με and good linear response in the range of 0–1500 με. A numerical simulation model is developed to study the axial strain response, and the results show that the core-offset structure increases the strain sensitivity by 46 %. In addition, the sensor has a temperature sensitivity of 3.43 pm/°C and a cross-sensitivity with strain as low as 0.199 με/°C over the range of 50–350 °C. © 2023 Elsevier B.V.

AB - A highly sensitive optic-fiber strain sensor based on the air-microbubble Fabry–Perot interferometer (FPI) formed in a core-offset tapered fiber is proposed. By drawing tapers on the staggered spliced single-mode fibers, micro air bubbles with an average wall thickness of 2.6 μm are formed. The experimental results show that the sensor has a high strain sensitivity of 17.24 pm/με and good linear response in the range of 0–1500 με. A numerical simulation model is developed to study the axial strain response, and the results show that the core-offset structure increases the strain sensitivity by 46 %. In addition, the sensor has a temperature sensitivity of 3.43 pm/°C and a cross-sensitivity with strain as low as 0.199 με/°C over the range of 50–350 °C. © 2023 Elsevier B.V.

KW - Core-offset tapered fiber

KW - Micro air bubbles

KW - Strain sensor

UR - https://www.scopus.com/pages/publications/85181061866

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-85181061866&origin=recordpage

U2 - 10.1016/j.optcom.2023.130235

DO - 10.1016/j.optcom.2023.130235

M3 - RGC 21 - Publication in refereed journal

SN - 0030-4018

VL - 555

JO - Optics Communications

JF - Optics Communications

M1 - 130235

ER -

A high-sensitivity strain sensor based on the core-offset fiber with a micro air bubble

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DON_RMG: Fabrication, Characterization, and Properties of Functional Materials - RMGS

DON: Surface Modification and Fabrication of Advanced Materials

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A high-sensitivity strain sensor based on the core-offset fiber with a micro air bubble

Abstract

Funding

Research Keywords

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DON_RMG: Fabrication, Characterization, and Properties of Functional Materials - RMGS

DON: Surface Modification and Fabrication of Advanced Materials

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