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发明授权
CN108398393B 一种快速测量温室气体含量的光腔衰荡光谱仪及测量方法 有权

一种快速测量温室气体含量的光腔衰荡光谱仪及测量方法
摘要：
本发明提供了一种快速测量温室气体含量的光腔衰荡光谱仪，其包括：衰荡光腔、气路系统和外部光路，所述外部光路包括第一激光器和第二激光器，第一激光器或第二激光器的激光在所述衰荡光腔内形成TEM00干涉模式，所述第一激光器与第二激光器的激光中心波长相同或相近。本发明还提供了一种采用上述光腔衰荡光谱仪进行测量的方法。
摘要（英）：

The invention provides an optical cavity ring-down spectrograph for quickly measuring content of greenhouse gas and a measuring method. The optical cavity ring-down spectrograph comprises a ring-downoptical cavity, a gas path system and an external optical path, wherein the external optical path comprises a first laser unit and a second laser unit; laser of the first laser unit or the second laser unit forms an TEM00 interference pattern in the ring-down optical cavity; and laser central wavelength of the first laser unit and the second laser unit is the same or is similar. The invention further provides a method for measuring by adopting the optical cavity ring-down spectrograph.

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