Fiber Bragg grating strain sensor based on fiber laser

Xiufeng Yang; Shaojun Luo; Zhihao Chen; Jun Hong Ng; Chao Lu

doi:10.1016/j.optcom.2006.10.007

Fiber Bragg grating strain sensor based on fiber laser

Xiufeng Yang, Shaojun Luo, Zhihao Chen, Jun Hong Ng, Chao Lu

The Hong Kong Polytechnic University

Research output: Journal article publication › Journal article › Academic research › peer-review

26 Citations (Scopus)

Abstract

A study on fiber Bragg grating (FBG) strain sensor, based on erbium-doped fiber (EDF) laser, is presented. A strain-sensing element, FBG, also acts as the lasing wavelength selecting component. When strain is applied on the FBG, the laser cavity loss changes, leading to a modification of the laser transient. Strain measurements are obtained in the time domain by simply measuring the EDF laser build-up time. Relative variation in the build-up time of up to 190%, for a strain range from 0 με to 2350 με, is achieved with a resolution corresponding to a strain of better than 2.35 με. This study demonstrates a novel fiber sensor concept and the technical feasibility to develop fiber strain measurement.

Original language	English
Pages (from-to)	203-206
Number of pages	4
Journal	Optics Communications
Volume	271
Issue number	1
DOIs	https://doi.org/10.1016/j.optcom.2006.10.007
Publication status	Published - 1 Mar 2007

Keywords

Fiber Bragg gratings (FBGs)
Fiber lasers
Fiber strain sensor

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

More information

10.1016/j.optcom.2006.10.007

Cite this

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title = "Fiber Bragg grating strain sensor based on fiber laser",

abstract = "A study on fiber Bragg grating (FBG) strain sensor, based on erbium-doped fiber (EDF) laser, is presented. A strain-sensing element, FBG, also acts as the lasing wavelength selecting component. When strain is applied on the FBG, the laser cavity loss changes, leading to a modification of the laser transient. Strain measurements are obtained in the time domain by simply measuring the EDF laser build-up time. Relative variation in the build-up time of up to 190%, for a strain range from 0 με to 2350 με, is achieved with a resolution corresponding to a strain of better than 2.35 με. This study demonstrates a novel fiber sensor concept and the technical feasibility to develop fiber strain measurement.",

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AU - Yang, Xiufeng

AU - Luo, Shaojun

AU - Chen, Zhihao

AU - Ng, Jun Hong

AU - Lu, Chao

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AB - A study on fiber Bragg grating (FBG) strain sensor, based on erbium-doped fiber (EDF) laser, is presented. A strain-sensing element, FBG, also acts as the lasing wavelength selecting component. When strain is applied on the FBG, the laser cavity loss changes, leading to a modification of the laser transient. Strain measurements are obtained in the time domain by simply measuring the EDF laser build-up time. Relative variation in the build-up time of up to 190%, for a strain range from 0 με to 2350 με, is achieved with a resolution corresponding to a strain of better than 2.35 με. This study demonstrates a novel fiber sensor concept and the technical feasibility to develop fiber strain measurement.

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Fiber Bragg grating strain sensor based on fiber laser

Abstract

Keywords

ASJC Scopus subject areas

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