All-Fiber Photoacoustic Gas Sensing with Interferometric Location

doi:10.3390/photonics9080546

CORC > 长春光学精密机械与物理研究所 > 中国科学院长春光学精密机械与物理研究所

	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
刊名	Photonics
	2022
卷号	9 期号:8 页码:12
DOI	10.3390/photonics9080546
英文摘要	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.
URL标识	查看原文
语种	英语
内容类型	期刊论文
源URL	[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.