Passive, multiplexable measurement of magnetic field strength and temperature using PM fibre bragg gratings and chiral fibre devices

Philip Orr; Pawel Niewczas

doi:10.1117/12.834173

Passive, multiplexable measurement of magnetic field strength and temperature using PM fibre bragg gratings and chiral fibre devices

Philip Orr, Pawel Niewczas

Electronic And Electrical Engineering

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

1 Citation (Scopus)

Abstract

We present a solution to the simultaneous intrinsic point sensing of bi-directional magnetic field strength and temperature. Using a passive, retroactive method for polarisation selection based on a local chiral fibre device, a series of dual-wavelength fibre Bragg gratings written in polarisation-maintaining fibre may be interrogated for both measurands over long distance using linearly polarised light. Through simulation we identify and evaluate sources of error in the scheme in order to find the design that yields the optimal sensitivity and noise level, which for the multiplexing interferometric interrogator are 3.0 μrad/mT and 22 mT rms respectively at a rate of up to 10 kHz.

Original language	English
Pages (from-to)	75032T
Journal	Proceedings of SPIE: The International Society for Optical Engineering
Volume	7503
DOIs	https://doi.org/10.1117/12.834173
Publication status	Published - Oct 2009
Event	20th International Conference on Optical Fibre Sensors - Edinburgh, United Kingdom Duration: 5 Oct 2009 → …

Keywords

simultaneous intrinsic point sensing
bi-directional magnetic field strength
polarisation
dual-wavelength fibre Bragg
linearly polarised light

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10.1117/12.834173

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title = "Passive, multiplexable measurement of magnetic field strength and temperature using PM fibre bragg gratings and chiral fibre devices",

abstract = "We present a solution to the simultaneous intrinsic point sensing of bi-directional magnetic field strength and temperature. Using a passive, retroactive method for polarisation selection based on a local chiral fibre device, a series of dual-wavelength fibre Bragg gratings written in polarisation-maintaining fibre may be interrogated for both measurands over long distance using linearly polarised light. Through simulation we identify and evaluate sources of error in the scheme in order to find the design that yields the optimal sensitivity and noise level, which for the multiplexing interferometric interrogator are 3.0 μrad/mT and 22 mT rms respectively at a rate of up to 10 kHz.",

keywords = "simultaneous intrinsic point sensing, bi-directional magnetic field strength, polarisation, dual-wavelength fibre Bragg , linearly polarised light",

author = "Philip Orr and Pawel Niewczas",

year = "2009",

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doi = "10.1117/12.834173",

language = "English",

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journal = "Proceedings of SPIE: The International Society for Optical Engineering",

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TY - JOUR

T1 - Passive, multiplexable measurement of magnetic field strength and temperature using PM fibre bragg gratings and chiral fibre devices

AU - Orr, Philip

AU - Niewczas, Pawel

PY - 2009/10

Y1 - 2009/10

N2 - We present a solution to the simultaneous intrinsic point sensing of bi-directional magnetic field strength and temperature. Using a passive, retroactive method for polarisation selection based on a local chiral fibre device, a series of dual-wavelength fibre Bragg gratings written in polarisation-maintaining fibre may be interrogated for both measurands over long distance using linearly polarised light. Through simulation we identify and evaluate sources of error in the scheme in order to find the design that yields the optimal sensitivity and noise level, which for the multiplexing interferometric interrogator are 3.0 μrad/mT and 22 mT rms respectively at a rate of up to 10 kHz.

AB - We present a solution to the simultaneous intrinsic point sensing of bi-directional magnetic field strength and temperature. Using a passive, retroactive method for polarisation selection based on a local chiral fibre device, a series of dual-wavelength fibre Bragg gratings written in polarisation-maintaining fibre may be interrogated for both measurands over long distance using linearly polarised light. Through simulation we identify and evaluate sources of error in the scheme in order to find the design that yields the optimal sensitivity and noise level, which for the multiplexing interferometric interrogator are 3.0 μrad/mT and 22 mT rms respectively at a rate of up to 10 kHz.

KW - simultaneous intrinsic point sensing

KW - bi-directional magnetic field strength

KW - polarisation

KW - dual-wavelength fibre Bragg

KW - linearly polarised light

UR - http://dx.doi.org/10.1117/12.834173

U2 - 10.1117/12.834173

DO - 10.1117/12.834173

M3 - Conference Contribution

VL - 7503

SP - 75032T

JO - Proceedings of SPIE: The International Society for Optical Engineering

JF - Proceedings of SPIE: The International Society for Optical Engineering

T2 - 20th International Conference on Optical Fibre Sensors

Y2 - 5 October 2009

ER -

Passive, multiplexable measurement of magnetic field strength and temperature using PM fibre bragg gratings and chiral fibre devices

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Keywords

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