Modulation Frequency Multiplexed Tunable Diode Laser Spectroscopy System for Simultaneous CO, CO2 Measurements
CHEN Dong, LIU Wen-Qing, ZHANG Yu-Jun, LIU Jian-Guo, WEI Qing-Nong, KAN Rui-Feng, WANG Min, CUI Yi-Ben, CHEN Jiu-Ying
Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031
Modulation Frequency Multiplexed Tunable Diode Laser Spectroscopy System for Simultaneous CO, CO2 Measurements
CHEN Dong;LIU Wen-Qing;ZHANG Yu-Jun;LIU Jian-Guo;WEI Qing-Nong;KAN Rui-Feng;WANG Min;CUI Yi-Ben;CHEN Jiu-Ying
Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031
关键词 ：
42.55.Px ,
42.62.-b ,
71.35.Cc
Abstract ： A modulation frequency multiplexed dual diode-laser system is developed for simultaneous detection of the two most common fire gas products CO and CO2 . Simultaneous detection is achieved by modulating each laser at different frequencies, demodulating the signal by a pair of lock-in amplifiers for each gas. Laser beams are combined and detected by one detector after passing through an identical optical path. The experimental results show little performance degradation associated with modulation frequency multiplexing, and no cross-talk between the two multiplexed detection channels is measured.
Key words ：
42.55.Px
42.62.-b
71.35.Cc
出版日期: 2006-09-01
:
42.55.Px
(Semiconductor lasers; laser diodes)
42.62.-b
(Laser applications)
71.35.Cc
(Intrinsic properties of excitons; optical absorption spectra)
引用本文:
CHEN Dong;LIU Wen-Qing;ZHANG Yu-Jun;LIU Jian-Guo;WEI Qing-Nong;KAN Rui-Feng;WANG Min;CUI Yi-Ben;CHEN Jiu-Ying. Modulation Frequency Multiplexed Tunable Diode Laser Spectroscopy System for Simultaneous CO, CO2 Measurements[J]. 中国物理快报, 2006, 23(9): 2446-2449.
2 Measurements. Chin. Phys. Lett., 2006, 23(9): 2446-2449.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y2006/V23/I9/2446
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