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
	2022
发表期刊	Applied Physics B-Lasers and Optics
ISSN	0946-2171
卷号	128 期号:2 页码:7
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.
DOI	10.1007/s00340-022-07757-3
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收录类别	sci ; ei
语种	英语
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文献类型	期刊论文
条目标识符	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.

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