中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Phase-sensitive optical time-domain reflectometric system based on a single-source dual heterodyne detection scheme

文献类型:期刊论文

作者Yu, Miao1; Liu, Minhan1; Chang, Tianying1,2; Lang, Jinpeng1; Chen, Jiandong1; Cui, Hong-Liang1,2
刊名APPLIED OPTICS
出版日期2017-05-10
卷号56期号:14页码:4058-4064
ISSN号1559-128X
DOI10.1364/AO.56.004058
通讯作者Chang, TY (reprint author), Jilin Univ, Coll Instrumentat & Elect Engn, Changchun 130021, Jilin, Peoples R China. ; Chang, TY (reprint author), Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing 400714, Peoples R China.
英文摘要A phase-sensitive optical time-domain reflectometric (F-OTDR) system based on a novel single-source dual heterodyne detection scheme is proposed and demonstrated. It uses the optical beat-frequency signals as the local oscillator signal containing the modulated frequency, frequency drift and phase fluctuation, while the signal to be detected contains all the forgoing spectral components, in addition to the vibration signal under measurement. Frequency mixing serves to isolate the pure vibration signal from the omnipresent residual frequency and phase fluctuations caused by a less strictly synchronous clock, inherent characteristics of the laser and the acousto-optical modulator, and environment temperature changes. With a reduced burden on data processing, better real-time performance is achieved as well. Using probe light pulses of 4 kHz repetition rate and 80 ns pulse width, a 9 m spatial resolution has been achieved on a 24.6 km sensing fiber, with a detectable frequency range from 5 Hz to 1.715 kHz, with a signal-to-noise ratio greater than 23.5 dB. All the above parameters are close to the maximum theoretical values. The drastically improved system demodulation characteristics foreshadow better performance and improved reliability in engineering applications. (C) 2017 Optical Society of America
资助项目State Administration of Oceanography of China[201405026-01] ; Ministry of Science and Technology of the People's Republic of China (MOST)[2012BAK04B03] ; Ministry of Science and Technology of the People's Republic of China (MOST)[2013DFA11550]
WOS研究方向Optics
语种英语
WOS记录号WOS:000401020800015
出版者OPTICAL SOC AMER
源URL[http://172.16.51.4:88/handle/2HOD01W0/230]  
专题太赫兹技术研究中心
通讯作者Chang, Tianying
作者单位1.Jilin Univ, Coll Instrumentat & Elect Engn, Changchun 130021, Jilin, Peoples R China
2.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing 400714, Peoples R China
推荐引用方式
GB/T 7714
Yu, Miao,Liu, Minhan,Chang, Tianying,et al. Phase-sensitive optical time-domain reflectometric system based on a single-source dual heterodyne detection scheme[J]. APPLIED OPTICS,2017,56(14):4058-4064.
APA Yu, Miao,Liu, Minhan,Chang, Tianying,Lang, Jinpeng,Chen, Jiandong,&Cui, Hong-Liang.(2017).Phase-sensitive optical time-domain reflectometric system based on a single-source dual heterodyne detection scheme.APPLIED OPTICS,56(14),4058-4064.
MLA Yu, Miao,et al."Phase-sensitive optical time-domain reflectometric system based on a single-source dual heterodyne detection scheme".APPLIED OPTICS 56.14(2017):4058-4064.

入库方式: OAI收割

来源:重庆绿色智能技术研究院

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