Long-time measurements of line-integrated plasma electron density using a two-color homodyne optical fiber interferometer

doi:10.1063/5.0055570

	Long-time measurements of line-integrated plasma electron density using a two-color homodyne optical fiber interferometer
	Lan, Tao 2; Zhang, Sen 2; Ding, Weixing 2; Zhuang, Ge 2; Wu, Zhengwei 2; Mao, Wenzhe 2; Chen, Chen 2; Lan, Shijie 2; Xu, Hangqi 2; Deng, Tijian 2
刊名	REVIEW OF SCIENTIFIC INSTRUMENTS
	2021-09-01
卷号	92
ISSN号	0034-6748
DOI	10.1063/5.0055570
通讯作者	Lan, Tao(lantao@ustc.edu.cn)
英文摘要	A two-color homodyne Mach-Zehnder (M-Z) optical fiber interferometer with wavelengths of 1.55 and 1.31 mu m was developed for long-time measurement of line-integrated plasma electron density. A novel phase difference demodulation algorithm based on a single 3 x 3 optical coupler was implemented in a two-color optical fiber interferometer scheme for the first time. Our laboratory tests showed that this new optical fiber interferometer could determine the phase shift due to the low-frequency ambient vibration and could maintain high phase resolution measurement. The resolution of the new interferometer was less than 0.04 rad in 1000 s, corresponding to a line-averaged electron density of less than 1.0 x 10(19) m(-2). Actual plasma discharge experiments performed on KTX-CTI, which is a new compact torus injector (CTI) constructed at the Keda Torus eXperiment (KTX), showed that this interferometer has excellent several-second stability.& nbsp;Published under an exclusive license by AIP Publishing.
资助项目	National Magnetic Confinement Fusion Science Program of China[2017YFE0301700] ; National Magnetic Confinement Fusion Science Program of China[2017YFE0301701] ; Natural Science Foundation of China[11875255] ; Natural Science Foundation of China[11635008] ; Natural Science Foundation of China[11375188] ; Natural Science Foundation of China[11975231]
WOS关键词	GAS-LASER
WOS研究方向	Instruments & Instrumentation ; Physics
语种	英语
出版者	AIP Publishing
WOS记录号	WOS:000724339500004
资助机构	National Magnetic Confinement Fusion Science Program of China ; Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/127233]
专题	中国科学院合肥物质科学研究院
通讯作者	Lan, Tao
作者单位	1.Univ Saskatchewan, Plasma Phys Lab, Saskatoon, SK S7N 5E2, Canada 2.Univ Sci & Technol China, Dept Plasma Phys & Fus Engn, Hefei 230026, Peoples R China 3.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China
推荐引用方式 GB/T 7714	Lan, Tao,Zhang, Sen,Ding, Weixing,et al. Long-time measurements of line-integrated plasma electron density using a two-color homodyne optical fiber interferometer[J]. REVIEW OF SCIENTIFIC INSTRUMENTS,2021,92.
APA	Lan, Tao.,Zhang, Sen.,Ding, Weixing.,Zhuang, Ge.,Wu, Zhengwei.,...&Liu, Wandong.(2021).Long-time measurements of line-integrated plasma electron density using a two-color homodyne optical fiber interferometer.REVIEW OF SCIENTIFIC INSTRUMENTS,92.
MLA	Lan, Tao,et al."Long-time measurements of line-integrated plasma electron density using a two-color homodyne optical fiber interferometer".REVIEW OF SCIENTIFIC INSTRUMENTS 92(2021).