Wavelength-scanned all-fiber cavity ring-down gas sensing using an L-band active fiber loop

doi:10.1007/s00340-022-07757-3

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	Wavelength-scanned all-fiber cavity ring-down gas sensing using an L-band active fiber loop
	M. P. Hu; M. Hu; W. B. Wang and Q. Wang
刊名	Applied Physics B-Lasers and Optics
	2022
卷号	128 期号:2 页码:7
ISSN号	0946-2171
DOI	10.1007/s00340-022-07757-3
英文摘要	We report an all-fiber wavelength-scanned cavity ring-down technique using an L-band active fiber loop. A software-based wavelength scanning scheme is developed to automatically sweep the absorption line of the analyte, by which the empty cavity loss can be directly obtained as well as the absorption information. Hence, analyte information can be further quantified by analyzing the whole calibration-free absorption spectrum. We choose the absorption transition of R(14) of CO2, as an example, for demonstration. The recovered absorption spectrum matches the theoretically computed absorption profile well with an R-2 value of 0.9964. Under an optimized integration time of 308 s, the sensing system shows a noise equivalent absorption coefficient of 2.15 x 10(-6) cm(-1), suggesting its potential applications to gas sensing with easy optical assembly, simple operation, and long-term stability.
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语种	英语
内容类型	期刊论文
源URL	[http://ir.ciomp.ac.cn/handle/181722/67242]
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. P. Hu,M. Hu,W. B. Wang and Q. Wang. Wavelength-scanned all-fiber cavity ring-down gas sensing using an L-band active fiber loop[J]. Applied Physics B-Lasers and Optics,2022,128(2):7.
APA	M. P. Hu,M. Hu,&W. B. Wang and Q. Wang.(2022).Wavelength-scanned all-fiber cavity ring-down gas sensing using an L-band active fiber loop.Applied Physics B-Lasers and Optics,128(2),7.
MLA	M. P. Hu,et al."Wavelength-scanned all-fiber cavity ring-down gas sensing using an L-band active fiber loop".Applied Physics B-Lasers and Optics 128.2(2022):7.