Trace photoacoustic SO2 gas sensor in SF6 utilizing a 266 nm UV laser and an acousto-optic power stabilizer

doi:10.1364/oe.483240

CIOMP OpenIR

	Trace photoacoustic SO2 gas sensor in SF6 utilizing a 266 nm UV laser and an acousto-optic power stabilizer
	B. S. Chen, H. K. Li, X. M. Zhao, M. Gao, K. Cheng, X. P. Shao, H. P. Wu, L. Dong and X. K. Yin
	2023
发表期刊	Optics Express
ISSN	1094-4087
卷号	31 期号:4 页码:6974-6981
摘要	A sulfur dioxide (SO2) gas sensor based on the photoacoustic spectroscopy technology in a sulfur hexafluoride (SF6) gas matrix was demonstrated for SF6 decomposition components monitoring in the power system. A passive Q-switching laser diode (LD) pumped all-solid-state 266 nm deep-ultraviolet laser was exploited as the laser excitation source. The photoacoustic signal amplitude is linear related to the incident optical power, whereas, a random laser power jitter is inevitable since the immature laser manufacturing technology in UV spectral region. A compact laser power stabilization system was developed for better sensor performance by adopting a photodetector, a custom-made internal closed-loop feedback controller and a Bragg acousto-optic modulator (AOM). The out-power stability of 0.04% was achieved even though the original power stability was 0.41% for similar to 2 hours. A differential two-resonator photoacoustic cell (PAC) was designed for weak photoacoustic signal detection. The special physical constants of SF6 buffer gas induced a high-Q factor of 85. A detection limit of 140 ppbv was obtained after the optimization, which corresponds to a normalized noise equivalent absorption coefficient of 3.2 x 10(-9) cm(-1)WHz(-1/2). (c) 2023 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement
DOI	10.1364/oe.483240
URL	查看原文
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/181722/67361
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	B. S. Chen, H. K. Li, X. M. Zhao, M. Gao, K. Cheng, X. P. Shao, H. P. Wu, L. Dong and X. K. Yin. Trace photoacoustic SO2 gas sensor in SF6 utilizing a 266 nm UV laser and an acousto-optic power stabilizer[J]. Optics Express,2023,31(4):6974-6981.
APA	B. S. Chen, H. K. Li, X. M. Zhao, M. Gao, K. Cheng, X. P. Shao, H. P. Wu, L. Dong and X. K. Yin.(2023).Trace photoacoustic SO2 gas sensor in SF6 utilizing a 266 nm UV laser and an acousto-optic power stabilizer.Optics Express,31(4),6974-6981.
MLA	B. S. Chen, H. K. Li, X. M. Zhao, M. Gao, K. Cheng, X. P. Shao, H. P. Wu, L. Dong and X. K. Yin."Trace photoacoustic SO2 gas sensor in SF6 utilizing a 266 nm UV laser and an acousto-optic power stabilizer".Optics Express 31.4(2023):6974-6981.

条目包含的文件		下载所有文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
Trace photoacoustic （2754KB）	期刊论文	出版稿	开放获取	CC BY-NC-SA	浏览下载