Monitoring of Carbon Dioxide Using Hollow-Core Photonic Crystal Fiber Mach-Zehnder Interferometer

被引：22

作者：

Ahmed, Farid ^{[1
]}

Ahsani, Vahid ^{[2
]}

Nazeri, Kaveh ^{[2
]}

Marzband, Ehsan ^{[1
]}

Bradley, Colin ^{[2
]}

Toyserkani, Ehsan ^{[1
]}

Jun, Martin B. G. ^{[3
]}

机构：

[1] Univ Waterloo, Multiscale Addit Mfg Lab, Dept Mech & Mechatron Engn, Waterloo, ON N2L 3G1, Canada

[2] Univ Victoria, Dept Mech Engn, Victoria, BC V8W 2Y2, Canada

[3] Purdue Univ, Sch Mech Engn, W Lafayette, IN 47907 USA

来源：

SENSORS | 2019年 / 19卷 / 15期

基金：

加拿大自然科学与工程研究理事会;

关键词：

carbon dioxide gas; fiber-optic sensor; Mach-Zehnder interferometer; photonic crystal fiber; STORAGE; CO2; CAPTURE; SENSOR;

D O I：

10.3390/s19153357

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Monitoring of greenhouse gases is essential to understand the present state and predict the future behavior of greenhouse gas emissions. Carbon dioxide (CO2) is the greenhouse gas of most immediate concern, because of its high atmospheric concentration and long lifetime. A fiber-optic Mach-Zehnder interferometer (MZI) is proposed and demonstrated for the laboratory-scale monitoring of carbon dioxide concentration. The interferometric sensor was constructed using a small stub of hollow-core photonic crystal fiber between a lead-in and lead-out standard single mode fiber, with air-gaps at both interfaces. At roomtemperature and atmospheric pressure, the sensor shows the sensitivity of 4.3 pm/% CO2. The device was packaged to demonstrate the laboratory-scale leakage detection and measurement of CO2 concentration in both subsurface and aqueous environments. The experimental study of this work reveals the great potential of the fiber-optic approach for environmental monitoring of CO2.

引用

页数：11

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