基于2.8 μm波段Er<sup>3+</sup>∶ZBLAN激光光源的CO<sub>2</sub>系统检测研究

doi:10.3964/j.issn.1000-0593(2025)04-1143-07

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Abstract Absorption spectroscopy based on mid-infrared light sources is one of the effective methods for CO₂ gas detection and analysis, and it has significant potential applications in environmental science and medical fields. However, most of the light sources used for the detection of CO₂ in the 2.8 μm band are commercial diode lasers or semiconductor lasers, which have a single output wavelength and poor beam quality, and the laser output power is small, which is susceptible to environmental fluctuations during the gas testing process. In this paper, a CO₂ gas detection system based on a mid-infrared fiber laser light source is constructed, which uses a 980 nm semiconductor laser as the pump light source and 1.9 m Er³⁺∶ZBLAN fiber as the gain medium to realize a high-quality mid-infrared laser output at 2.8 μm. It analyzes the output characteristics of the light source under this structure. When the maximum pump power is 6 W, the center wavelength of the laser output spectrum is 2 783.09 nm, the spectral width is 5.69 nm, the average output power is 1.21 W, and the conversion efficiency is 20.3%. The output power fluctuation of the laser is less than 4.5% within 30 min, and the output energy is relatively concentrated. The fitted beam waist radii D_x and D_y are 0.035 mm and 0.038 mm, and the beam quality factors M²_x and M²_y are 1.096 and 1.224, respectively. The better quality and stability of the laser's output beam dramatically reduces the effects of environmental fluctuations during gas detection. On this basis, the signal spectra before and after CO₂ fluxing were obtained using direct absorption spectroscopy. The center wavelengths of the absorption peaks of CO₂ in the 2 778.5~2 784 nm band were measured to be 2 779.36, 2 780.70, 2 782.13, 2 783.55 nm, and the difference in the center wavelengths of the absorption peaks with the HITRAN standard library was less than 0.05 nm. The peak and half-height width of the CO₂ absorption spectrum at the center wavelength of 2 780.7 nm was 5.33 cm·mol^-1 and 0.18 nm, obtained by inversion of the Lambert-Beer law. The corresponding peak absorption spectra and half-height width values of the HITRAN standard library under the same conditions were 5.38 cm·mol^-1 and 0.12 nm, respectively, with a difference of only 0.05 cm·mol^-1 and 0.06 nm. The high accuracy of the experimental test results proves that the detection system can be used in CO₂ gas detection.

Key words：Gas detection; Mid-infrared band; 2.8 μm laser; Carbon dioxide; Direct absorption

Received: 2024-05-10 Accepted: 2024-08-04

ZTFLH:

TN21

Corresponding Authors: TIAN Ying E-mail: tianyingcjlu@163.com

Cite this article:

LIU Yong-yan,WANG Kun-yang,TIAN Ying, et al. Research on CO₂ System Detection Based on 2.8 μm Band Er³⁺∶ZBLAN Laser Source[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2025, 45(04): 1143-1149.

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https://www.gpxygpfx.com/EN/10.3964/j.issn.1000-0593(2025)04-1143-07 OR https://www.gpxygpfx.com/EN/Y2025/V45/I04/1143

[1] Devi S, Gupta N. Natural Resource Modeling, 2019, 32(1): e12174.
[2] Jiang X, Mira D, Cluff D L. Progress in Energy and Combustion Science, 2018, 66: 176.
[3] Happonen K, Virkkala A M, Kemppinen J, et al. Journal of Ecology, 2022, 110(3): 700.
[4] Kudrna P, Johanek J, Rozanek M, et al. Metabolic Model of the Human Respiratory System. 2015 E-Health and Bioengineering Conference (EHB). Iasi, Romania, 2015, 1.
[5] WANG Jing, LIU Yi, YANG Dong-xu(王婧，刘毅，杨东旭). Chinese Science Bulletin(科学通报), 2021, 66(7): 709.
[6] Hanafi R, Mayasari R D, Masmui M, et al. Electrochemical Sensor for Environmental Monitoring System: A Review. 8th National Physics Seminar, AIP Conference Proceedings, 2019, 2169: 030007.
[7] Gorbova E, Tzorbatzoglou F, Molochas C, et al. Catalysts, 2021, 12(1): 1.
[8] Struzik M, Garbayo I, Pfenninger R, et al. Advanced Materials, 2018, 30(44): 1804098.
[9] Gautam Y K, Sharma K, Tyagi S, et al. Royal Society Open Science, 2021, 8(3): 201324.
[10] XU Chun-xia, WANG Guang-wei, ZHANG Peng(徐春霞, 王光伟, 张鹏). Transducer and Microsystem Technologies(传感器与微系统), 2023, 42(10): 1.
[11] Buvik V, Hoisaeter K K, Vevelstad S J, et al. International Journal of Greenhouse Gas Control, 2021, 106: 103246.
[12] Hu D, Ren T, Yang X, et al. Journal of Physics: Conference Series, 2024, 2724: 012022.
[13] Dong M, Zhong G, Miao S, et al. Optoelectronics Letters, 2018, 14(2): 119.
[14] Fu B, Zhang C, Lyu W, et al. Applied Spectroscopy Reviews, 2022, 57(2): 112.
[15] Hinkley E D. Applied Physics Letters, 1970, 16(9): 351.
[16] Nwaboh J A, Werhahn O, Ortwein P, et al. Measurement Science and Technology, 2013, 24(1): 015202.
[17] Roy A, Upadhyay A, Chakraborty A L. High-Sensitivity Remote Detection of Atmospheric Pollutants and Greenhouse Gases at Low ppm Levels Using Near-Infrared Tunable Diode Lasers. Conference on Remote Sensing of the Atmosphere, Clouds, and Precipitation VI, Proceedings of SPIE, 2016, 9876: 98761W.
[18] Wolff M, Groninga H G, Harde H. Photoacoustic CO₂ Detection at 2.7 μm. Conference on Optical Sensing II, Proceedings of SPIE, 2006, 6189: 61890X.
[19] WU Tao, ZHANG Huai-lin, KONG Wei-ping, et al(吴涛, 张怀林, 孔维平, 等). Acta Optica Sinica(光学学报), 2018, 38(12): 1230001.
[20] Qiao S, Qu Y, Ma Y, et al. Sensors, 2019, 19(19): 4187.
[21] LI Zhen-gang, SI Gan-shang, NING Zhi-qiang, et al(李振钢, 司赶上, 宁志强, 等). Acta Optica Sinica（光学学报）, 2022, 42(13): 1330001.
[22] Pipa A V, Puth A, Bocker J, et al. Plasma Sources Science and Technology, 2023, 32(8): 085011.
[23] JING Wen-bo, WANG Xiao-man, YANG Wen-bo, et al(景文博, 王晓曼, 杨文波, 等). Infrared and Laser Engineering(红外与激光工程), 2012, 41(2): 466.
[24] Shimizu Y, Maruyama T, Nakagawa S, et al. Measurement Science and Technology, 2018, 29(7): 074006.