Simultaneous measurement of temperature and strain using a phase-shifted fiber Bragg grating inscribed by femtosecond laser

Yajun Jiang; Chi Liu; Dong Li; Dexing Yang; Jianlin Zhao

doi:10.1088/1361-6501/aa9f6a

Simultaneous measurement of temperature and strain using a phase-shifted fiber Bragg grating inscribed by femtosecond laser

Yajun Jiang, Chi Liu, Dong Li, Dexing Yang, Jianlin Zhao

School of Physical Science and Technology

Northwestern Polytechnical University Xian

Research output: Contribution to journal › Article › peer-review

18 Scopus citations

Abstract

A novel method for simultaneous measurement of temperature and strain using a single phase-shifted fiber Bragg grating (PS-FBG) is proposed. The PS-FBG is produced by exposing the fusion-spliced fiber with a femtosecond laser and uniform phase mask. Due to the non-uniform structure and strain distribution in the fusion-spliced region, the phase-shift changes with different responses during increases to the temperature and strain; by measuring the central wavelengths and the loss difference of two transmission dips, temperature and strain can be determined simultaneously. The resolutions of this particular sensor in measuring temperature and strain are estimated to be ±1.5 °C and ±12.2 μϵ in a range from -50 °C to 150 °C and from 0 μϵ to 2070 μϵ.

Original language	English
Article number	045101
Journal	Measurement Science and Technology
Volume	29
Issue number	4
DOIs	https://doi.org/10.1088/1361-6501/aa9f6a
State	Published - 26 Feb 2018

Keywords

femtosecond laser
fusion splicing technique
phase-shifted fiber Bragg grating
strain
temperature

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10.1088/1361-6501/aa9f6a

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title = "Simultaneous measurement of temperature and strain using a phase-shifted fiber Bragg grating inscribed by femtosecond laser",

abstract = "A novel method for simultaneous measurement of temperature and strain using a single phase-shifted fiber Bragg grating (PS-FBG) is proposed. The PS-FBG is produced by exposing the fusion-spliced fiber with a femtosecond laser and uniform phase mask. Due to the non-uniform structure and strain distribution in the fusion-spliced region, the phase-shift changes with different responses during increases to the temperature and strain; by measuring the central wavelengths and the loss difference of two transmission dips, temperature and strain can be determined simultaneously. The resolutions of this particular sensor in measuring temperature and strain are estimated to be ±1.5 °C and ±12.2 μϵ in a range from -50 °C to 150 °C and from 0 μϵ to 2070 μϵ.",

keywords = "femtosecond laser, fusion splicing technique, phase-shifted fiber Bragg grating, strain, temperature",

author = "Yajun Jiang and Chi Liu and Dong Li and Dexing Yang and Jianlin Zhao",

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T1 - Simultaneous measurement of temperature and strain using a phase-shifted fiber Bragg grating inscribed by femtosecond laser

AU - Jiang, Yajun

AU - Liu, Chi

AU - Li, Dong

AU - Yang, Dexing

AU - Zhao, Jianlin

PY - 2018/2/26

Y1 - 2018/2/26

N2 - A novel method for simultaneous measurement of temperature and strain using a single phase-shifted fiber Bragg grating (PS-FBG) is proposed. The PS-FBG is produced by exposing the fusion-spliced fiber with a femtosecond laser and uniform phase mask. Due to the non-uniform structure and strain distribution in the fusion-spliced region, the phase-shift changes with different responses during increases to the temperature and strain; by measuring the central wavelengths and the loss difference of two transmission dips, temperature and strain can be determined simultaneously. The resolutions of this particular sensor in measuring temperature and strain are estimated to be ±1.5 °C and ±12.2 μϵ in a range from -50 °C to 150 °C and from 0 μϵ to 2070 μϵ.

AB - A novel method for simultaneous measurement of temperature and strain using a single phase-shifted fiber Bragg grating (PS-FBG) is proposed. The PS-FBG is produced by exposing the fusion-spliced fiber with a femtosecond laser and uniform phase mask. Due to the non-uniform structure and strain distribution in the fusion-spliced region, the phase-shift changes with different responses during increases to the temperature and strain; by measuring the central wavelengths and the loss difference of two transmission dips, temperature and strain can be determined simultaneously. The resolutions of this particular sensor in measuring temperature and strain are estimated to be ±1.5 °C and ±12.2 μϵ in a range from -50 °C to 150 °C and from 0 μϵ to 2070 μϵ.

KW - femtosecond laser

KW - fusion splicing technique

KW - phase-shifted fiber Bragg grating

KW - strain

KW - temperature

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Simultaneous measurement of temperature and strain using a phase-shifted fiber Bragg grating inscribed by femtosecond laser

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