辐射计
光学
材料科学
激光器
艾伦方差
遥感
光谱分辨率
外差探测
外差(诗歌)
光放大器
环境科学
光电子学
物理
谱线
标准差
统计
数学
天文
声学
地质学
作者
Hao Deng,Renshi Li,Hao Liu,Yabai He,Chenguang Yang,Xiang Li,Zhenyu Xu,Ruifeng Kan
出处
期刊:Optics Letters
[The Optical Society]
日期:2022-08-03
卷期号:47 (17): 4335-4335
被引量:8
摘要
A novel, to the best of our knowledge, performance-enhanced laser heterodyne radiometer has been developed by utilizing a semiconductor optical amplifier to amplify the collected weak solar radiation in an optical fiber. High-spectral-resolution measurements of atmospheric carbon dioxide column absorption are used to validate the technique and performance of the developed instrument. The implementation of optical amplification led to a 9-times improvement in sensitivity according to the Allan variance analysis for noise fluctuations, and resulted in a 7.7-times enhancement in measurement precision for atmospheric carbon dioxide. The promising results showed the great potential of employing this type of compact fiber-optics-based spectral radiometer for applications such as atmospheric greenhouse gas sensing.
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