Low-cost temperature- And strain-insensitive twist sensor based on a hybrid fiber grating structure

Xi Guo, Zhikun Xing, Huabao Qin, Qizhen Sun, Hushan Wang, Deming Liu, Lin Zhang, Zhijun Yan*

*Corresponding author for this work

Research output: Contribution to journalArticle

Abstract

We proposed and experimentally demonstrated a temperature- and strain-insensitive twist sensor based on a hybrid fiber grating structure, in which the hybrid grating structure is constructed with a 45°-tilted fiber grating and a chirped fiber Bragg grating UV-inscribed in a single-mode fiber in series. The sensing performance has been evaluated by experimental and numerical analyses, which are in good consistency. The experimental results show that the hybrid-grating-structure-based twist sensor has a maximum twist sensitivity up to 15.037 dB/rad. Moreover, due to the invariability of the fiber birefringence and the state of polarization of the input light, such sensor has intrinsically low temperature and strain sensitivities of 7.86 × 10−3 dB∕°C and 6.7 × 10−5 dB∕με, corresponding to the maximum twist measurement error resulting from temperature and strain of 5.2 × 10−4 rad∕°C and 4.5 × 10−6 rad∕με, respectively.

Original languageEnglish
Pages (from-to)4479-4483
Number of pages5
JournalApplied Optics
Volume58
Issue number16
Early online date7 May 2019
DOIs
Publication statusPublished - 31 May 2019

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gratings
sensor
fibers
Fibers
sensors
Sensors
costs
cost
Costs
temperature
Diffraction gratings
Fiber Bragg gratings
Single mode fibers
Birefringence
Measurement errors
polarization
Temperature
birefringence
Polarization
Bragg gratings

Bibliographical note

This paper was published in Applied Optics and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: https://doi.org/10.1364/AO.58.004479. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.

Cite this

Guo, Xi ; Xing, Zhikun ; Qin, Huabao ; Sun, Qizhen ; Wang, Hushan ; Liu, Deming ; Zhang, Lin ; Yan, Zhijun. / Low-cost temperature- And strain-insensitive twist sensor based on a hybrid fiber grating structure. In: Applied Optics. 2019 ; Vol. 58, No. 16. pp. 4479-4483.
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Low-cost temperature- And strain-insensitive twist sensor based on a hybrid fiber grating structure. / Guo, Xi; Xing, Zhikun; Qin, Huabao; Sun, Qizhen; Wang, Hushan; Liu, Deming; Zhang, Lin; Yan, Zhijun.

In: Applied Optics, Vol. 58, No. 16, 31.05.2019, p. 4479-4483.

Research output: Contribution to journalArticle

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