All-Fiber Photoacoustic Gas Sensing with Interferometric Location

doi:10.3390/photonics9080546

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	All-Fiber Photoacoustic Gas Sensing with Interferometric Location
	M. Li; M. P. Hu; H. Zhang; J. N. Wang; T. Y. Tang; M. Hu and Q. Wang
	2022
发表期刊	Photonics
卷号	9 期号:8 页码:12
摘要	Photoacoustic spectroscopy (PAS) is a promising gas detection technique with high sensitivity, fast response, and good stability. Frequency-modulated continuous-wave (FMCW) interferometry offers precise distance detection with high spatial resolution. The combination of PAS and FMCW may lead to an optical technique for the simultaneous extraction of gas concentration and location information. Herein, we demonstrate this technique in an all-fiber sensing system by blending a fiber-pigtailed PAS sensor with an FMCW interferometer. As an example, we have measured the methane concentration and location by employing time-division multiplexing, showing a minimum detection limit of 28 ppm and a spatial resolution of 3.87 mm over a distance of similar to 4.9 m. This study enables the realization of a versatile technique for multiparameter gas sensing in gas leakage detection and gas emission monitoring.
DOI	10.3390/photonics9080546
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收录类别	sci
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/66405
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	M. Li,M. P. Hu,H. Zhang,et al. All-Fiber Photoacoustic Gas Sensing with Interferometric Location[J]. Photonics,2022,9(8):12.
APA	M. Li,M. P. Hu,H. Zhang,J. N. Wang,T. Y. Tang,&M. Hu and Q. Wang.(2022).All-Fiber Photoacoustic Gas Sensing with Interferometric Location.Photonics,9(8),12.
MLA	M. Li,et al."All-Fiber Photoacoustic Gas Sensing with Interferometric Location".Photonics 9.8(2022):12.

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