| 调谐半导体激光光谱分时扫描多路方法 |
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| 引用本文： | 陈东,刘文清,张玉钧.调谐半导体激光光谱分时扫描多路方法[J].光子学报,2009,38(8). |
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| 作者姓名： | 陈东 刘文清 张玉钧 |
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| 作者单位： | 1. 合肥工业大学,仪器科学与光电工程学院,合肥,230009
2. 中国科学院安徽光学精密机械研究所,合肥,230031 |
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| 基金项目： | 国家自然科学基金，合肥工业大学科学研究发展基金 |
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| 摘 要： | 针对调谐半导体激光光谱多组分气体检测需要,提出了一种基于多激光分时扫描的激光时分多路新方法.该方法结合了波长调制光谱技术,通过对多台检测激光器输出波长的分时扫描,在一个系统周期内实现多组分气体的准同时检测.将该方法应用于天然气泄漏红外激光多组分检测系统,通过对天然气主要成份CH4和H2S的同时测量,及时发现可能的天然气气体泄漏,在满足灵敏检测的前提下,实现了系统结构的简化.
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| 关 键 词： | 调谐半导体激光吸收光谱 半导体激光 多路 分时扫描 |
Time Sharing Scanning Multiplexing Method of Tunable Diode Laser Spectroscopy System |
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| CHEN Dong,LIU Wen-Qing,ZHANG Yu-Jun.Time Sharing Scanning Multiplexing Method of Tunable Diode Laser Spectroscopy System[J].Acta Photonica Sinica,2009,38(8). |
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| Authors: | CHEN Dong LIU Wen-Qing ZHANG Yu-Jun |
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| Institution: | 1 School of Instrument Science and Opto-electronic Engineering;Hefei University of Technology;Hefei 230009;China;2 Anhui Institute of Optics and Fine Mechanics;Chinese Academy of Science;Hefei 230031;China |
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| Abstract: | For the demand of multiply gas species detection of tunable diode laser spectroscopy,a novel time-division multiplexing method-time sharing scanning multiplexing method is presented.Based on the wavelength modulation spectroscopy technology,quasi-simultaneously multi-species detection in one system cycle is realized by simultaneous modulating and sequencially scanning multiply lasers.This method is used in infrared laser spectroscopy based gas emission multi-component detection system.Through Quasi-simultan... |
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| Keywords: | Tunable diode laser Absorption spectroscopy Diode laser Multiplexing Time sharing scanning |
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