光学技术, 2014, 40 (1): 94, 网络出版: 2014-05-23
基于Er∶YAG单频可调谐激光器的甲烷吸收光谱测量
Measurement of the absorption spectrum of methane by using a tunable Er∶YAG single frequency laser
摘要
采用1.6μm激光差分吸收是探测甲烷(CH4)气体浓度的一种重要手段。通过对CH4气体吸收光谱的理论分析及计算, 并基于Er∶YAG单频可调谐激光器, 在实验室测量了CH4气体对1.645μm激光的吸收谱线。实验结果对研制用于测量CH4气体浓度的差分吸收激光雷达光源有重要意义。
Abstract
It is an important method to measure the concentration of methane (CH4) by using 1.6μm laser differential absorption. By analyzing and calculating the absorption spectrum of CH4, based on a tunable Er∶YAG single frequency laser, the absorption of CH4 towards 1.645μm laser is measured experimentally. The results are useful for selecting the LIDAR's source for measuring the concentration of CH4.
郑岩, 王然, 叶青. 基于Er∶YAG单频可调谐激光器的甲烷吸收光谱测量[J]. 光学技术, 2014, 40(1): 94. ZHENG Yan, WANG Ran, YE Qing. Measurement of the absorption spectrum of methane by using a tunable Er∶YAG single frequency laser[J]. Optical Technique, 2014, 40(1): 94.
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