Transverse strain sensing based on optical fibre Solc filter

Rui H. Chu; Ju Jia Zou

doi:10.1016/j.yofte.2010.02.002

Transverse strain sensing based on optical fibre Solc filter

Rui H. Chu, Ju Jia Zou

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

9 Citations (Scopus)

Abstract

We present an optical sensor based on Solc filter to measure the transverse strain. The Solc filter is made of highly birefringent fibre by twisting its optical axes back and forth in equal sections. When a polarised light goes through the sensor, a periodic transmission response is obtained with a certain free spectra range (FSR) determined by the modal birefringence and the section length. The transverse strain can be measured by the shift of FSR from the transmitted response as the transverse stress changes the birefringence. More importantly we find that the measurement of transverse strain is free from the influence of temperature. We theoretically analyse the sensor model and simulate it by Jones Formalism. It is found that the sensitivity can achieve 7.14 pm/με. The influence of section length, wavelength of light source, modal birefringence and number of sections on the sensitivity is also investigated.

Original language	English
Pages (from-to)	151-155
Number of pages	5
Journal	Optical Fiber Technology
Volume	16
Issue number	3
DOIs	https://doi.org/10.1016/j.yofte.2010.02.002
Publication status	Published - 2010

Keywords

optical fiber detectors
structural health monitoring
refraction, double

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10.1016/j.yofte.2010.02.002

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title = "Transverse strain sensing based on optical fibre Solc filter",

abstract = "We present an optical sensor based on Solc filter to measure the transverse strain. The Solc filter is made of highly birefringent fibre by twisting its optical axes back and forth in equal sections. When a polarised light goes through the sensor, a periodic transmission response is obtained with a certain free spectra range (FSR) determined by the modal birefringence and the section length. The transverse strain can be measured by the shift of FSR from the transmitted response as the transverse stress changes the birefringence. More importantly we find that the measurement of transverse strain is free from the influence of temperature. We theoretically analyse the sensor model and simulate it by Jones Formalism. It is found that the sensitivity can achieve 7.14 pm/με. The influence of section length, wavelength of light source, modal birefringence and number of sections on the sensitivity is also investigated.",

keywords = "optical fiber detectors, structural health monitoring, refraction, double",

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TY - JOUR

T1 - Transverse strain sensing based on optical fibre Solc filter

AU - Chu, Rui H.

AU - Zou, Ju Jia

PY - 2010

Y1 - 2010

N2 - We present an optical sensor based on Solc filter to measure the transverse strain. The Solc filter is made of highly birefringent fibre by twisting its optical axes back and forth in equal sections. When a polarised light goes through the sensor, a periodic transmission response is obtained with a certain free spectra range (FSR) determined by the modal birefringence and the section length. The transverse strain can be measured by the shift of FSR from the transmitted response as the transverse stress changes the birefringence. More importantly we find that the measurement of transverse strain is free from the influence of temperature. We theoretically analyse the sensor model and simulate it by Jones Formalism. It is found that the sensitivity can achieve 7.14 pm/με. The influence of section length, wavelength of light source, modal birefringence and number of sections on the sensitivity is also investigated.

AB - We present an optical sensor based on Solc filter to measure the transverse strain. The Solc filter is made of highly birefringent fibre by twisting its optical axes back and forth in equal sections. When a polarised light goes through the sensor, a periodic transmission response is obtained with a certain free spectra range (FSR) determined by the modal birefringence and the section length. The transverse strain can be measured by the shift of FSR from the transmitted response as the transverse stress changes the birefringence. More importantly we find that the measurement of transverse strain is free from the influence of temperature. We theoretically analyse the sensor model and simulate it by Jones Formalism. It is found that the sensitivity can achieve 7.14 pm/με. The influence of section length, wavelength of light source, modal birefringence and number of sections on the sensitivity is also investigated.

KW - optical fiber detectors

KW - structural health monitoring

KW - refraction, double

UR - http://handle.uws.edu.au:8081/1959.7/548834

U2 - 10.1016/j.yofte.2010.02.002

DO - 10.1016/j.yofte.2010.02.002

M3 - Article

SN - 1068-5200

VL - 16

SP - 151

EP - 155

JO - Optical Fiber Technology

JF - Optical Fiber Technology

IS - 3

ER -

Transverse strain sensing based on optical fibre Solc filter

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Keywords

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