Point-by-Point Induced High Birefringence Polymer Optical Fiber Bragg Grating for Strain Measurement

Shixin Gao; Heng Wang; Yuhang Chen; Heming Wei; Getinet Woyessa; Ole Bang; Rui Min; Hang Qu; Christophe Caucheteur; Xuehao Hu

doi:10.3390/photonics10010091

Point-by-Point Induced High Birefringence Polymer Optical Fiber Bragg Grating for Strain Measurement

Shixin Gao, Heng Wang^*, Yuhang Chen, Heming Wei, Getinet Woyessa, Ole Bang, Rui Min, Hang Qu, Christophe Caucheteur, Xuehao Hu

^*Corresponding author for this work

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Abstract

In this paper, the first- and fourth-order fiber Bragg grating (FBG)-based axial strain sensors are proposed. The FBGs are inscribed in step-index polymer optical fibers (POFs) (TOPAS core and ZEONEX cladding) via the point-by-point (PbP) direct-writing technique. A first-order FBG with a single peak is obtained with a pulse fluence of 7.16 J/cm², showing a strain sensitivity of 1.17 pm/με. After that, a fourth-order FBG with seven peaks is obtained with a pulse fluence of 1.81 J/cm² with a strain sensitivity between 1.249 pm/με and 1.296 pm/με. With a higher fluence of 2.41 J/cm², a second fourth-order FBG with five peaks is obtained, each of which is split into two peaks due to high birefringence (Hi-Bi) of ~5.4 × 10⁻⁴. The two split peaks present a strain sensitivity of ~1.44 pm/με and ~1.55 pm/με, respectively. The peak difference corresponding to Hi-Bi presents a strain sensitivity of ~0.11 pm/με and could potentially be used for simultaneous dual-parameter measurement, such as temperature and strain.

Original language	English
Article number	91
Journal	Photonics
Volume	10
Issue number	1
Number of pages	11
ISSN	2304-6732
DOIs	https://doi.org/10.3390/photonics10010091
Publication status	Published - Jan 2023

Bibliographical note

Funding Information:
This work is supported by scientific research project of Liaoning Provincial Education Department (No. LJKMZ 20220544), Special projects in key fields of colleges and universities in Guangdong Province (No. 2020ZDZX3037), Science and Technology Department of Guangdong Province (No. 2022A1515012571), and the Fonds de la Recherche Scientifique (F.R.S.-FNRS) under the Postdoctoral Researcher Grant (Chargé de Recherches) of Xuehao Hu and the Senior Research Associate Position of Christophe Caucheteur.

Publisher Copyright:
© 2023 by the authors.

Keywords

Birefringence
Fiber Bragg grating
Polymer optical fiber
Strain sensing

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title = "Point-by-Point Induced High Birefringence Polymer Optical Fiber Bragg Grating for Strain Measurement",

abstract = "In this paper, the first- and fourth-order fiber Bragg grating (FBG)-based axial strain sensors are proposed. The FBGs are inscribed in step-index polymer optical fibers (POFs) (TOPAS core and ZEONEX cladding) via the point-by-point (PbP) direct-writing technique. A first-order FBG with a single peak is obtained with a pulse fluence of 7.16 J/cm2, showing a strain sensitivity of 1.17 pm/με. After that, a fourth-order FBG with seven peaks is obtained with a pulse fluence of 1.81 J/cm2 with a strain sensitivity between 1.249 pm/με and 1.296 pm/με. With a higher fluence of 2.41 J/cm2, a second fourth-order FBG with five peaks is obtained, each of which is split into two peaks due to high birefringence (Hi-Bi) of ~5.4 × 10−4. The two split peaks present a strain sensitivity of ~1.44 pm/με and ~1.55 pm/με, respectively. The peak difference corresponding to Hi-Bi presents a strain sensitivity of ~0.11 pm/με and could potentially be used for simultaneous dual-parameter measurement, such as temperature and strain.",

keywords = "Birefringence, Fiber Bragg grating, Polymer optical fiber, Strain sensing",

author = "Shixin Gao and Heng Wang and Yuhang Chen and Heming Wei and Getinet Woyessa and Ole Bang and Rui Min and Hang Qu and Christophe Caucheteur and Xuehao Hu",

note = "Funding Information: This work is supported by scientific research project of Liaoning Provincial Education Department (No. LJKMZ 20220544), Special projects in key fields of colleges and universities in Guangdong Province (No. 2020ZDZX3037), Science and Technology Department of Guangdong Province (No. 2022A1515012571), and the Fonds de la Recherche Scientifique (F.R.S.-FNRS) under the Postdoctoral Researcher Grant (Charg{\'e} de Recherches) of Xuehao Hu and the Senior Research Associate Position of Christophe Caucheteur. Publisher Copyright: {\textcopyright} 2023 by the authors.",

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AU - Gao, Shixin

AU - Wang, Heng

AU - Chen, Yuhang

AU - Wei, Heming

AU - Woyessa, Getinet

AU - Bang, Ole

AU - Min, Rui

AU - Qu, Hang

AU - Caucheteur, Christophe

AU - Hu, Xuehao

N1 - Funding Information: This work is supported by scientific research project of Liaoning Provincial Education Department (No. LJKMZ 20220544), Special projects in key fields of colleges and universities in Guangdong Province (No. 2020ZDZX3037), Science and Technology Department of Guangdong Province (No. 2022A1515012571), and the Fonds de la Recherche Scientifique (F.R.S.-FNRS) under the Postdoctoral Researcher Grant (Chargé de Recherches) of Xuehao Hu and the Senior Research Associate Position of Christophe Caucheteur. Publisher Copyright: © 2023 by the authors.

PY - 2023/1

Y1 - 2023/1

N2 - In this paper, the first- and fourth-order fiber Bragg grating (FBG)-based axial strain sensors are proposed. The FBGs are inscribed in step-index polymer optical fibers (POFs) (TOPAS core and ZEONEX cladding) via the point-by-point (PbP) direct-writing technique. A first-order FBG with a single peak is obtained with a pulse fluence of 7.16 J/cm2, showing a strain sensitivity of 1.17 pm/με. After that, a fourth-order FBG with seven peaks is obtained with a pulse fluence of 1.81 J/cm2 with a strain sensitivity between 1.249 pm/με and 1.296 pm/με. With a higher fluence of 2.41 J/cm2, a second fourth-order FBG with five peaks is obtained, each of which is split into two peaks due to high birefringence (Hi-Bi) of ~5.4 × 10−4. The two split peaks present a strain sensitivity of ~1.44 pm/με and ~1.55 pm/με, respectively. The peak difference corresponding to Hi-Bi presents a strain sensitivity of ~0.11 pm/με and could potentially be used for simultaneous dual-parameter measurement, such as temperature and strain.

AB - In this paper, the first- and fourth-order fiber Bragg grating (FBG)-based axial strain sensors are proposed. The FBGs are inscribed in step-index polymer optical fibers (POFs) (TOPAS core and ZEONEX cladding) via the point-by-point (PbP) direct-writing technique. A first-order FBG with a single peak is obtained with a pulse fluence of 7.16 J/cm2, showing a strain sensitivity of 1.17 pm/με. After that, a fourth-order FBG with seven peaks is obtained with a pulse fluence of 1.81 J/cm2 with a strain sensitivity between 1.249 pm/με and 1.296 pm/με. With a higher fluence of 2.41 J/cm2, a second fourth-order FBG with five peaks is obtained, each of which is split into two peaks due to high birefringence (Hi-Bi) of ~5.4 × 10−4. The two split peaks present a strain sensitivity of ~1.44 pm/με and ~1.55 pm/με, respectively. The peak difference corresponding to Hi-Bi presents a strain sensitivity of ~0.11 pm/με and could potentially be used for simultaneous dual-parameter measurement, such as temperature and strain.

KW - Birefringence

KW - Fiber Bragg grating

KW - Polymer optical fiber

KW - Strain sensing

U2 - 10.3390/photonics10010091

DO - 10.3390/photonics10010091

M3 - Journal article

AN - SCOPUS:85146846124

SN - 2304-6732

VL - 10

JO - Photonics

JF - Photonics

IS - 1

M1 - 91

ER -

Point-by-Point Induced High Birefringence Polymer Optical Fiber Bragg Grating for Strain Measurement

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