| 论文题目 | Optical amplification enables a huge sensitivity improvement to laser heterodyne radiometers for high-resolution measurements of atmospheric gases |
| 论文题目（英文） | Optical amplification enables a huge sensitivity improvement to laser heterodyne radiometers for high-resolution measurements of atmospheric gases |
| 作者 | Deng, Hao;Li, Renshi;刘皓;He, Yabai;杨晨光;Li, Xiang;Xu, Zhenyu;Kan, Ruifeng |
| 发表年度 | 2022-09-01 |
| 卷 | 47 |
| 期 | 17 |
| 页码 | 4335-4338 |
| 期刊名称 | OPTICS LETTERS |
| 摘要 | |
| 摘要_英文 | 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. (C) 2022 Optica Publishing Group. |
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