Multi-Parameter Sensing Using a Fiber Bragg Grating Inscribed in Dual-Mode Fiber

Yajun Jiang; Chi Liu; Wending Zhang; Dong Mao; Dexing Yang; Jianlin Zhao

doi:10.1109/LPT.2017.2737013

Multi-Parameter Sensing Using a Fiber Bragg Grating Inscribed in Dual-Mode Fiber

Yajun Jiang, Chi Liu, Wending Zhang, Dong Mao, Dexing Yang, Jianlin Zhao

School of Physical Science and Technology

Northwestern Polytechnical University Xian

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

27 Scopus citations

Abstract

We propose a method for simultaneous measurement of strain, temperature, and surrounding refractive index (SRI) using a fiber Bragg grating (FBG) inscribed in dual-mode fiber by femtosecond laser. This FBG not only possesses two Bragg resonances corresponding to LP₀₁ and LP₁₁ modes, respectively, but also shows many strong cladding mode resonances, which are sensitive to SRI. Due to the different responses, the strain, temperature, and SRI can be discriminated simultaneously by measuring the two Bragg resonance wavelengths and the normalized area of cladding mode resonances. The estimated resolutions of this FBG in measuring strain, temperature, and SRI are \pm 6.3~\mu \varepsilon , ±0.8 °C, and ±2.7 \times 10^{-5} RIU, respectively.

Original language	English
Article number	8003428
Pages (from-to)	1607-1610
Number of pages	4
Journal	IEEE Photonics Technology Letters
Volume	29
Issue number	19
DOIs	https://doi.org/10.1109/LPT.2017.2737013
State	Published - 1 Oct 2017

Keywords

dual-mode fiber
femtosecond laser
fiber Bragg grating
Multi-parameter sensing

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title = "Multi-Parameter Sensing Using a Fiber Bragg Grating Inscribed in Dual-Mode Fiber",

abstract = "We propose a method for simultaneous measurement of strain, temperature, and surrounding refractive index (SRI) using a fiber Bragg grating (FBG) inscribed in dual-mode fiber by femtosecond laser. This FBG not only possesses two Bragg resonances corresponding to LP01 and LP11 modes, respectively, but also shows many strong cladding mode resonances, which are sensitive to SRI. Due to the different responses, the strain, temperature, and SRI can be discriminated simultaneously by measuring the two Bragg resonance wavelengths and the normalized area of cladding mode resonances. The estimated resolutions of this FBG in measuring strain, temperature, and SRI are \pm 6.3~\mu \varepsilon , ±0.8 °C, and ±2.7 \times 10^{-5} RIU, respectively.",

keywords = "dual-mode fiber, femtosecond laser, fiber Bragg grating, Multi-parameter sensing",

author = "Yajun Jiang and Chi Liu and Wending Zhang and Dong Mao and Dexing Yang and Jianlin Zhao",

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T1 - Multi-Parameter Sensing Using a Fiber Bragg Grating Inscribed in Dual-Mode Fiber

AU - Jiang, Yajun

AU - Liu, Chi

AU - Zhang, Wending

AU - Mao, Dong

AU - Yang, Dexing

AU - Zhao, Jianlin

PY - 2017/10/1

Y1 - 2017/10/1

N2 - We propose a method for simultaneous measurement of strain, temperature, and surrounding refractive index (SRI) using a fiber Bragg grating (FBG) inscribed in dual-mode fiber by femtosecond laser. This FBG not only possesses two Bragg resonances corresponding to LP01 and LP11 modes, respectively, but also shows many strong cladding mode resonances, which are sensitive to SRI. Due to the different responses, the strain, temperature, and SRI can be discriminated simultaneously by measuring the two Bragg resonance wavelengths and the normalized area of cladding mode resonances. The estimated resolutions of this FBG in measuring strain, temperature, and SRI are \pm 6.3~\mu \varepsilon , ±0.8 °C, and ±2.7 \times 10^{-5} RIU, respectively.

AB - We propose a method for simultaneous measurement of strain, temperature, and surrounding refractive index (SRI) using a fiber Bragg grating (FBG) inscribed in dual-mode fiber by femtosecond laser. This FBG not only possesses two Bragg resonances corresponding to LP01 and LP11 modes, respectively, but also shows many strong cladding mode resonances, which are sensitive to SRI. Due to the different responses, the strain, temperature, and SRI can be discriminated simultaneously by measuring the two Bragg resonance wavelengths and the normalized area of cladding mode resonances. The estimated resolutions of this FBG in measuring strain, temperature, and SRI are \pm 6.3~\mu \varepsilon , ±0.8 °C, and ±2.7 \times 10^{-5} RIU, respectively.

KW - dual-mode fiber

KW - femtosecond laser

KW - fiber Bragg grating

KW - Multi-parameter sensing

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JO - IEEE Photonics Technology Letters

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Multi-Parameter Sensing Using a Fiber Bragg Grating Inscribed in Dual-Mode Fiber

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