Discrimination between strain and temperature effects using first and second-order diffraction from a long-period grating

Thomas D.P. Allsop; Lin Zhang; David J. Webb; Ian Bennion

doi:10.1016/S0030-4018(02)01906-5

Discrimination between strain and temperature effects using first and second-order diffraction from a long-period grating

Thomas D.P. Allsop^*, Lin Zhang, David J. Webb, Ian Bennion

^*Corresponding author for this work

Aston Institute of Photonic Technologies (AiPT)

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

Abstract

We study the effects of temperature and strain on the spectra of the first and second-order diffraction attenuation bands of a single long-period grating (LPG) in step-index fibre. The primary and second-order attenuation bands had comparable strength with the second-order bands appearing in the visible and near-infra red parts of the spectrum. Using first and second-order diffraction to the eighth cladding mode a sensitivity matrix was obtained with limiting accuracy given by cross-sensitivity of ∼ 1.19% of the measurement. The sensing scheme presented as a limiting temperature and strain resolution of ± 0.7 °C and ∼ ± 25 με. © 2002 Elsevier Science B.V. All rights reserved.

Original language	English
Pages (from-to)	103-108
Number of pages	6
Journal	Optics Communications
Volume	211
Issue number	1-6
DOIs	https://doi.org/10.1016/S0030-4018(02)01906-5
Publication status	Published - 1 Oct 2002

Keywords

long-period fibre grating
second-order diffraction
strain and temperature sensing

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10.1016/S0030-4018(02)01906-5

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title = "Discrimination between strain and temperature effects using first and second-order diffraction from a long-period grating",

abstract = "We study the effects of temperature and strain on the spectra of the first and second-order diffraction attenuation bands of a single long-period grating (LPG) in step-index fibre. The primary and second-order attenuation bands had comparable strength with the second-order bands appearing in the visible and near-infra red parts of the spectrum. Using first and second-order diffraction to the eighth cladding mode a sensitivity matrix was obtained with limiting accuracy given by cross-sensitivity of ∼ 1.19% of the measurement. The sensing scheme presented as a limiting temperature and strain resolution of ± 0.7 °C and ∼ ± 25 με. {\textcopyright} 2002 Elsevier Science B.V. All rights reserved.",

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author = "Allsop, {Thomas D.P.} and Lin Zhang and Webb, {David J.} and Ian Bennion",

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doi = "10.1016/S0030-4018(02)01906-5",

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TY - JOUR

T1 - Discrimination between strain and temperature effects using first and second-order diffraction from a long-period grating

AU - Allsop, Thomas D.P.

AU - Zhang, Lin

AU - Webb, David J.

AU - Bennion, Ian

PY - 2002/10/1

Y1 - 2002/10/1

N2 - We study the effects of temperature and strain on the spectra of the first and second-order diffraction attenuation bands of a single long-period grating (LPG) in step-index fibre. The primary and second-order attenuation bands had comparable strength with the second-order bands appearing in the visible and near-infra red parts of the spectrum. Using first and second-order diffraction to the eighth cladding mode a sensitivity matrix was obtained with limiting accuracy given by cross-sensitivity of ∼ 1.19% of the measurement. The sensing scheme presented as a limiting temperature and strain resolution of ± 0.7 °C and ∼ ± 25 με. © 2002 Elsevier Science B.V. All rights reserved.

AB - We study the effects of temperature and strain on the spectra of the first and second-order diffraction attenuation bands of a single long-period grating (LPG) in step-index fibre. The primary and second-order attenuation bands had comparable strength with the second-order bands appearing in the visible and near-infra red parts of the spectrum. Using first and second-order diffraction to the eighth cladding mode a sensitivity matrix was obtained with limiting accuracy given by cross-sensitivity of ∼ 1.19% of the measurement. The sensing scheme presented as a limiting temperature and strain resolution of ± 0.7 °C and ∼ ± 25 με. © 2002 Elsevier Science B.V. All rights reserved.

KW - long-period fibre grating

KW - second-order diffraction

KW - strain and temperature sensing

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UR - https://www.sciencedirect.com/science/article/pii/S0030401802019065?via%3Dihub

U2 - 10.1016/S0030-4018(02)01906-5

DO - 10.1016/S0030-4018(02)01906-5

M3 - Article

SN - 0030-4018

VL - 211

SP - 103

EP - 108

JO - Optics Communications

JF - Optics Communications

IS - 1-6

ER -

Discrimination between strain and temperature effects using first and second-order diffraction from a long-period grating

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