Fibre Bragg grating sensor interrogation using an acousto-optic tunable filter and low-coherence interferometry

D.C.C. Norman; David J. Webb

doi:10.1088/0957-0233/18/9/029

Fibre Bragg grating sensor interrogation using an acousto-optic tunable filter and low-coherence interferometry

D.C.C. Norman, David J. Webb

Aston Institute of Photonic Technologies (AiPT)

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

Abstract

We describe how an acousto-optic tunable filter can be used to both demultiplex the signals from multiple fibre Bragg grating sensors and simultaneously provide wide bandwidth signal demodulation in a system using interferometric wavelength shift detection. In an experimental demonstration, the approach provided a noise limited strain resolution of 24.9 nε Hz ^-1/2 at 15 Hz. © 2007 IOP Publishing Ltd.

Original language	English
Pages (from-to)	2967-2971
Number of pages	5
Journal	Measurement Science and Technology
Volume	18
Issue number	9
DOIs	https://doi.org/10.1088/0957-0233/18/9/029
Publication status	Published - Sept 2007

Keywords

AOTF
FBG
optical fibre sensor

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10.1088/0957-0233/18/9/029

Cite this

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title = "Fibre Bragg grating sensor interrogation using an acousto-optic tunable filter and low-coherence interferometry",

abstract = "We describe how an acousto-optic tunable filter can be used to both demultiplex the signals from multiple fibre Bragg grating sensors and simultaneously provide wide bandwidth signal demodulation in a system using interferometric wavelength shift detection. In an experimental demonstration, the approach provided a noise limited strain resolution of 24.9 nε Hz -1/2 at 15 Hz. {\textcopyright} 2007 IOP Publishing Ltd.",

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year = "2007",

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N2 - We describe how an acousto-optic tunable filter can be used to both demultiplex the signals from multiple fibre Bragg grating sensors and simultaneously provide wide bandwidth signal demodulation in a system using interferometric wavelength shift detection. In an experimental demonstration, the approach provided a noise limited strain resolution of 24.9 nε Hz -1/2 at 15 Hz. © 2007 IOP Publishing Ltd.

AB - We describe how an acousto-optic tunable filter can be used to both demultiplex the signals from multiple fibre Bragg grating sensors and simultaneously provide wide bandwidth signal demodulation in a system using interferometric wavelength shift detection. In an experimental demonstration, the approach provided a noise limited strain resolution of 24.9 nε Hz -1/2 at 15 Hz. © 2007 IOP Publishing Ltd.

KW - AOTF

KW - FBG

KW - optical fibre sensor

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UR - http://iopscience.iop.org/0957-0233/18/9/029

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DO - 10.1088/0957-0233/18/9/029

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ER -

Fibre Bragg grating sensor interrogation using an acousto-optic tunable filter and low-coherence interferometry

Abstract

Keywords

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