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	Methane Optical Sensing System With Polarization Rotation Gas Cell
	Wang, Zhongmin1; Luo, Zhengchun1; Chang, Tianying1,2; Cheng, Liyao3; Wu, Chongjian3; Cui, Hong-Liang1,4
	2019-09-01
摘要	A methane optical sensing system using a single reflective optical polarization rotation gas cell is developed. The periodic ripple-like variation of interference light intensity in the common single reflective gas cell is analyzed, in terms of the calculated return loss and insertion loss of the cell. A novel single reflective optical polarization rotation gas cell is designed and demonstrated to adequately suppress the light interference effect. The efficacy of the new approach is demonstrated experimentally, showing that the accuracy of the new methane sensor using optical polarization rotation gas cell is better than the sensor using a common single reflective gas cell by 47 %.
关键词	Methane optical sensing and sensors infrared spectroscopy laser sensors optical polarization rotation
DOI	10.1109/JSEN.2019.2916978
发表期刊	IEEE SENSORS JOURNAL
ISSN	1530-437X
卷号	19期号:17页码:7415-7424
通讯作者	Chang, Tianying(tchang@jlu.edu.cn)
收录类别	SCI
WOS记录号	WOS:000480379400030
语种	英语