Micro-nano fiber-assisted active photoacoustic spectroscopy for gas sensing

doi:10.1364/OE.482371

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	Micro-nano fiber-assisted active photoacoustic spectroscopy for gas sensing
	M. Hu; H. Zhang; W. Wang and Q. Wang
	2023
发表期刊	Optics Express (IF:3.669[JCR-2019],3.461[5-Year])
ISSN	10944087
卷号	31 期号:2 页码:3278-3290
摘要	We report on the development of all-fiber active photoacoustic spectroscopy, where active photoacoustic effect is generated by embedding a micro-nano fiber inside a fiber laser resonator to exploit the evanescent field of the high intracavity power. Acetylene detection at 1530.37 nm was selected for gas sensing demonstration. With a small diameter of 1.1 µm, the tapped fiber exploited ∼20% intracavity power for the evanescent-wave photoacoustic excitation, while only introduced a low intrinsic cavity loss of 0.08 dB. Our sensor achieved a minimum detection limit of 1 ppm at an integration time of 10 s, which can be improved to 73 ppb at 1000 s benefited from the high system stability. The sensing dynamic range was determined to be more than five orders. This spectroscopic technique combines fiber laser, photoacoustic spectroscopy, and fiber evanescent-wave absorption to achieve gas sensing with high flexibility, low optical noise, and easy optical alignment. Current limitations were discussed in detail to explore feasible ways to improve the performance in response time, dynamic range and sensitivity. © 2023 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement.
DOI	10.1364/OE.482371
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收录类别	sci ; ei
引用统计	正在获取...
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/67534
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. Hu,H. Zhang,W. Wang and Q. Wang. Micro-nano fiber-assisted active photoacoustic spectroscopy for gas sensing[J]. Optics Express,2023,31(2):3278-3290.
APA	M. Hu,H. Zhang,&W. Wang and Q. Wang.(2023).Micro-nano fiber-assisted active photoacoustic spectroscopy for gas sensing.Optics Express,31(2),3278-3290.
MLA	M. Hu,et al."Micro-nano fiber-assisted active photoacoustic spectroscopy for gas sensing".Optics Express 31.2(2023):3278-3290.

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