A Dual-Laser Sensor Based on Off-Axis Integrated Cavity Output Spectroscopy and Time-Division Multiplexing Method

doi:10.3390/s20216192

HFCAS OpenIR

	A Dual-Laser Sensor Based on Off-Axis Integrated Cavity Output Spectroscopy and Time-Division Multiplexing Method
	Wang, Kunyang 1,2; Shao, Ligang 1; Chen, Jiajin 1; Wang, Guishi 1; Liu, Kun1 ; Tan, Tu1 ; Mei, Jiaoxu1 ; Chen, Weidong3 ; Gao, Xiaoming1
	2020-11-01
发表期刊	SENSORS
通讯作者	Gao, Xiaoming(xmgao@aiofm.ac.cn)
摘要	In this article, a compact dual-laser sensor based on an off-axis integrated-cavity output spectroscopy and time-division multiplexing method is reported. A complete dual-channel optical structure is developed and integrated on an optical cavity, which allows two distributed feedback (DFB) lasers operating at wavelengths of 1603 nm and 1651 nm to measure the concentration of CO2 and CH4, simultaneously. Performances of the dual-laser sensor are experimentally evaluated by using standard air (with a mixture of CO2 and CH4). The limit of detection (LoD) is 0.271 ppm and 1.743 ppb at a 20 s for CO2 and CH4, respectively, and the noise equivalent absorption sensitivities are 2.68 x 10(-10) cm(-1) Hz(-1/2) and 3.88 x 10(-10) cm(-1) Hz(-1/2), respectively. Together with a commercial instrument, the dual-laser sensor is used to measure CO2 and CH4 concentration over 120 h and verify the regular operation of the sensor for the detection of ambient air. Furthermore, a first-order exponential moving average algorithm is implemented as an effective digital filtering method to estimate the gas concentration.
关键词	OA-ICOS dual-laser sensor time-division multiplexing carbon dioxide methane
DOI	10.3390/s20216192
关键词[WOS]	ENHANCED ABSORPTION-SPECTROSCOPY ; DIODE-LASER ; WAVELENGTH MODULATION ; WHITE-NOISE ; TRANSITIONS ; PARAMETERS ; DESIGN ; WATER ; H2O ; CO
收录类别	SCI
语种	英语
资助项目	National Key Research and Development Program of China[2016YFC0303900] ; National Key Research and Development Program of China[2017YFC0209700] ; National Natural Science Foundation of China (NSFC)[41730103]
项目资助者	National Key Research and Development Program of China ; National Natural Science Foundation of China (NSFC)
WOS研究方向	Chemistry ; Engineering ; Instruments & Instrumentation
WOS类目	Chemistry, Analytical ; Engineering, Electrical & Electronic ; Instruments & Instrumentation
WOS记录号	WOS:000589379500001
出版者	MDPI
引用统计	被引频次：11[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.hfcas.ac.cn:8080/handle/334002/105180
专题	中国科学院合肥物质科学研究院
通讯作者	Gao, Xiaoming
作者单位	1.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Hefei Inst Phys Sci, Hefei 230031, Anhui, Peoples R China 2.Univ Sci & Technol China, Sci Isl Branch, Grad Sch, Hefei 230031, Anhui, Peoples R China 3.Univ Littoral Cote dOpale, Lab Physicochim Atmosphere, 189A,Av Maurice Schumann, F-59140 Dunkerque, France
第一作者单位	中科院安徽光学精密机械研究所
通讯作者单位	中科院安徽光学精密机械研究所
推荐引用方式 GB/T 7714	Wang, Kunyang,Shao, Ligang,Chen, Jiajin,et al. A Dual-Laser Sensor Based on Off-Axis Integrated Cavity Output Spectroscopy and Time-Division Multiplexing Method[J]. SENSORS,2020,20.
APA	Wang, Kunyang.,Shao, Ligang.,Chen, Jiajin.,Wang, Guishi.,Liu, Kun.,...&Gao, Xiaoming.(2020).A Dual-Laser Sensor Based on Off-Axis Integrated Cavity Output Spectroscopy and Time-Division Multiplexing Method.SENSORS,20.
MLA	Wang, Kunyang,et al."A Dual-Laser Sensor Based on Off-Axis Integrated Cavity Output Spectroscopy and Time-Division Multiplexing Method".SENSORS 20(2020).