Research of CO<sub>2</sub> gas sensors based on photonic crystal fiber

XU Kang; LÜ Shuyuan; YANG Yi

doi:10.7510/jgjs.issn.1001-3806.2017.05.015

LASER TECHNOLOGY > 2017 > 41(5): 693-696. > DOI: 10.7510/jgjs.issn.1001-3806.2017.05.015

XU Kang, LÜ Shuyuan, YANG Yi. Research of CO₂ gas sensors based on photonic crystal fiber[J]. LASER TECHNOLOGY, 2017, 41(5): 693-696. DOI: 10.7510/jgjs.issn.1001-3806.2017.05.015

Citation:

XU Kang, LÜ Shuyuan, YANG Yi. Research of CO₂ gas sensors based on photonic crystal fiber[J]. LASER TECHNOLOGY, 2017, 41(5): 693-696. DOI: 10.7510/jgjs.issn.1001-3806.2017.05.015

Citation:

XU Kang, LÜ Shuyuan, YANG Yi. Research of CO₂ gas sensors based on photonic crystal fiber[J]. LASER TECHNOLOGY, 2017, 41(5): 693-696. DOI: 10.7510/jgjs.issn.1001-3806.2017.05.015

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Research of CO₂ gas sensors based on photonic crystal fiber

School of Electronic Engineering, Xi'an University of Posts and Telecommunications, Xi'an 710061, China

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Received Date: November 06, 2016
Revised Date: December 21, 2016
Published Date: September 24, 2017

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Abstract

Abstract

In order to get high sensitivity detection of volume fraction of carbon dioxide gas, a carbon dioxide gas sensor based on the principle of infrared spectrum absorption was designed by using 9m hollow-core photonic crystal fiber as sensing unit. The absorption spectra of carbon dioxide gas with different volume fractions were measured under the same absorption wavelength. The analysis results show that the linear relationship between gas absorption intensity and volume fraction of gas is presented, in accordance with Beer-Lambert law. The detective sensitivity of the system is estimated to be 4.389×10^-5W. It can make the system get higher sensitivity by lengthening the photonic crystal fiber and increasing the effective distance of gas absorption.
- sensor technique,
- sensitivity,
- infrared spectrum absorption,
- photonic crystal fiber

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Research of CO₂ gas sensors based on photonic crystal fiber