|
|
|
|
|
|
Effects of Temperature of Laser Shell on Background Signals for Trace Gas Detection in TDLAS |
CHEN Hao1,2,JU Yu1,HAN Li1,LIU Jun-biao1 |
1. Institute of Electrical Engineering, Chinese Academy of Sciences, 100190 Beijing, China
2. University of Chinese Academy of Sciences, 100049 Beijing, China |
|
|
Abstract As the technique of tunable diode laser absorptionscopy (TDLAS) is employed for trace gas detection, the second-harmonic background signal drifts with the changeof the temperature of semiconductor laser shells. It results in unstability of the second-harmonic signal. Its drifting can cause measurement errors. Based on the principle of TDLAS, the cause of the second harmonic of the background signal is explained. Then the causes of the background signal and its drifting influence on measurement results are analyzed. In addition, the standard second-harmonic signal is obtained after the rejection of background signal. Finally a high-accuracy temperature control systemis designed and it is equipped with air cooling and water cooling modules for auxiliary temperature control. The control precision is between ±0.1 ℃. Moreover, 1 796 and 1 653 nm wavelength distrubuted feedback lasers are selected. By controlling the temperature of the two laser shells from 20 to 44 ℃ reversally, the temperature interval is 2 ℃, the experimental results of the second-harmonic background signal are studied. The test results indicate that: As the temperature of semiconductor laser shells rises, the background signal red-shifts; otherwise it blue-shifts. While testing the background signals of the 1 796 and 1 653 nm DFB lasers drift about 3.2 and 2.67 pm respectively at each temperature change of 2 degrees cenigrade. With the constant temperature control of semiconductor laser shells, it can effectively eliminate the influence of the background signal drifting when room temperature changes and enhance the stability of measurement system. The accuracy of trace gas detection is improved.
|
Received: 2017-06-28
Accepted: 2017-10-15
|
|
|
[1] ZHANG Zhi-rong,DONG Feng-zhong,WU Bian,et al(张志荣,董凤忠,吴 边,等). Journal of Optoelectronics·Laser(光电子·激光),2011,(11):1691.
[2] JU Yu,XIE Liang,HAN Wei,et al(鞠 昱,谢 亮,韩 威,等). High Power Laser and Particle Beams(强激光与粒子束),2011,(2):363.
[3] YAO Lu,LIU Wen-qing,LIU Jian-guo,et al(姚 路,刘文清,刘建国,等). Chinese Journal of Lasers(中国激光),2015,(02):313.
[4] CHEN Yi-kang,JU Yu,HAN Li(陈奕钪,鞠 昱,韩 立). Spectroscopy and Spectral Analysis(光谱学与光谱分析),2017,37(1):27.
[5] HU Ya-jun,ZHAO Xue-hong,ZHANG Rui,et al(胡雅君,赵学红,张 锐,等). Acta Opitca Sinica(光学学报),2013,(11):296.
[6] QU Dong-sheng,HONG Yan-ji,WANG Guang-yu,et al(屈东胜,洪延姬,王广宇,等). Acta Opitca Sinica(光学学报),2013,(12):338.
[7] Qi Rubin. Tianjin University,2012.
[8] PANG Tao,XIA Hua,WU Bian,et al(庞 涛,夏 滑,吴 边,等). Journal of Optoelectronics·Laser(光电子·激光),2015,(1):104.
[9] Reid J,EI-Sherbiny M,Garside B K. Appl. Optica Acta,1980,(3):575.
[10] Duffin K,McGettrick A J,Johnstone W,et al. J. Lightwave Technol.,2007,25(10):3114.
[11] Stewart G,Johnstone W,Bain J R P, et al. Journal of Lightwave Technology,2011,29:811.
[12] Schilt S,Thevenaz L,Robert P. Appl. Opt.,2003,42(33):6728.
[13] Wang Q, Chang J, Song F J,et al. Appl. Opt.,2013,52(26): 6445. |
[1] |
ZHENG Hong-quan, DAI Jing-min*. Research Development of the Application of Photoacoustic Spectroscopy in Measurement of Trace Gas Concentration[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2024, 44(01): 1-14. |
[2] |
ZENG Si-xian1, REN Xin1, HE Hao-xuan1, NIE Wei1, 2*. Influence Analysis of Spectral Line-Shape Models on Spectral Diagnoses Under High-Temperature Conditions[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(09): 2715-2721. |
[3] |
PENG Wei, YANG Sheng-wei, HE Tian-bo, YU Ben-li, LI Jin-song, CHENG Zhen-biao, ZHOU Sheng*, JIANG Tong-tong*. Detection of Water Vapor Concentration in Sealed Medicine Bottles Based on Digital Quadrature Phase-Locked Demodulation Algorithm and TDLAS
Technology[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(03): 698-704. |
[4] |
ZHANG Le-wen1, 2, WANG Qian-jin1, 3, SUN Peng-shuai1, PANG Tao1, WU Bian1, XIA Hua1, ZHANG Zhi-rong1, 3, 4, 5*. Analysis of Interference Factors and Study of Temperature Correction Method in Gas Detection by Laser Absorption Spectroscopy[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(03): 767-773. |
[5] |
LIU Ting-ting1, SHEN Xu-ling1, REN Xin-yi1, WEN Zhao-yang1, YAN Ming1, 2, ZENG He-ping1, 2*. Decomposition Products Detection of Sulfur Hexafluoride Based on
Frequency Comb Spectroscopy[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(03): 927-932. |
[6] |
ZHANG Bo-han, YANG Jun, HUANG Qian-kun, XIE Xing-juan. Research on Gas Pressure Measurement Method Based on Absorption Spectroscopy and Laser Interference Technology[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2022, 42(12): 3692-3696. |
[7] |
WANG Fang1, 3, ZHU Nan2, CHEN Jing-yi1, ZAN Jia-nan3, XIAO Zi-kang1, LIU Chang1, LIU Yun-fei3*. Infrared Spectroscopy Study on Temperature Characteristics of Several Common Antibiotics and Therapeutic COVID-19 Drugs[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2022, 42(12): 3719-3729. |
[8] |
LONG Jiang-xiong1, 2, ZHANG Yu-jun1*, SHAO Li1*, YE Qing1, 2, HE Ying3, YOU Kun3, SUN Xiao-quan1, 2. Traceable Measurement of Optical Path Length of Gas Cell Based on Tunable Diode Laser Absorption Spectroscopy[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2022, 42(11): 3461-3466. |
[9] |
YANG Jin-chuan1, 2, AN Jing-long1, 2, LI Cong3, ZHU Wen-chao3*, HUANG Bang-dou4*, ZHANG Cheng4, 5, SHAO Tao4, 5. Study on Detecting Method of Toxic Agent Containing Phosphorus
(Simulation Agent) by Optical Emission Spectroscopy of
Atmospheric Pressure Low-Temperature Plasma[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2022, 42(06): 1728-1734. |
[10] |
LI Cong-cong1, LUO Qi-wu2, ZHANG Ying-ying1, 3*. Determination of Net Photosynthetic Rate of Plants Based on
Environmental Compensation Model[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2022, 42(05): 1561-1566. |
[11] |
WANG Qi, WANG Shi-chao, LIU Tai-yu, CHEN Zi-qiang. Research Progress of Multi-Component Gas Detection by Photoacoustic Spectroscopy[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2022, 42(01): 1-8. |
[12] |
CHEN Hao1, 2, JU Yu3,HAN Li1. Research on the Relationship Between Modulation Depth and Center of High Order Harmonic in TDLAS Wavelength Modulation Method[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2021, 41(12): 3676-3681. |
[13] |
CHEN Yang, DAI Jing-min*, WANG Zhen-tao, YANG Zong-ju. A Near-Infrared TDLAS Online Detection Device for Dissolved Gas in Transformer Oil[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2021, 41(12): 3712-3716. |
[14] |
TANG Nian1,2, HE Shu-kai3, ZENG Xiao-zhe3*, WANG Huan-xin3,4, SUN Dong-wei1,2, WU Qian-qian3, LI Jing-wei3. Research on Infrared Absorption Characteristics and Detection Technology of New Environmentally Friendly Insulating Gas Trans-1,1,1,4,4,4-Hexafluoro-2-Butene[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2021, 41(10): 3099-3105. |
[15] |
WANG Guo-shui1, GUO Ao2, LIU Xiao-nan1, FENG Lei1, CHANG Peng-hao1, ZHANG Li-ming1, LIU Long1, YANG Xiao-tao1*. Simulation and Influencing Factors Analysis of Gas Detection System Based on TDLAS Technology[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2021, 41(10): 3262-3268. |
|
|
|
|