Performance Characterization of a Fully Transportable Mid-Infrared Laser Heterodyne Radiometer (LHR)
A fully transportable laser heterodyne radiometer (LHR), involving a flexible polycrystalline mid-infrared (PIR) fiber-coupling system and operating around 8 µm, was characterized and optimized with the help of a calibrated high temperature blackbody source to simulate solar radiation. Compared to a...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-01-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/23/2/978 |
| _version_ | 1797437196519604224 |
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| author | Fengjiao Shen Xueyou Hu Jun Lu Zhengyue Xue Jun Li Tu Tan Zhensong Cao Xiaoming Gao Weidong Chen |
| author_facet | Fengjiao Shen Xueyou Hu Jun Lu Zhengyue Xue Jun Li Tu Tan Zhensong Cao Xiaoming Gao Weidong Chen |
| author_sort | Fengjiao Shen |
| collection | DOAJ |
| description | A fully transportable laser heterodyne radiometer (LHR), involving a flexible polycrystalline mid-infrared (PIR) fiber-coupling system and operating around 8 µm, was characterized and optimized with the help of a calibrated high temperature blackbody source to simulate solar radiation. Compared to a mid-IR free-space sunlight coupling system, usually used in a current LHR, such a fiber-coupling system configuration makes the mid-infrared (MIR) LHR fully transportable. The noise sources, heterodyne signal, and SNR of the MIR LHR were analyzed, and the optimum operating local oscillator (LO) photocurrent was experimentally obtained. The spectroscopic performance of the MIR LHR was finally evaluated. This work demonstrated that the developed fully transportable MIR LHR could be used for ground-based atmospheric sounding measurements of multiple trace gases in the atmospheric column. In addition, it also has high potential for applications on spacecraft or on an airborne platform. |
| first_indexed | 2024-03-09T11:16:20Z |
| format | Article |
| id | doaj.art-d777965c2cb3451491169594e893866b |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-09T11:16:20Z |
| publishDate | 2023-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-d777965c2cb3451491169594e893866b2023-12-01T00:30:46ZengMDPI AGSensors1424-82202023-01-0123297810.3390/s23020978Performance Characterization of a Fully Transportable Mid-Infrared Laser Heterodyne Radiometer (LHR)Fengjiao Shen0Xueyou Hu1Jun Lu2Zhengyue Xue3Jun Li4Tu Tan5Zhensong Cao6Xiaoming Gao7Weidong Chen8School of Advanced Manufacturing Engineering, Hefei University, Hefei 230601, ChinaSchool of Advanced Manufacturing Engineering, Hefei University, Hefei 230601, ChinaSchool of Advanced Manufacturing Engineering, Hefei University, Hefei 230601, ChinaSchool of Advanced Manufacturing Engineering, Hefei University, Hefei 230601, ChinaAnhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, ChinaAnhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, ChinaAnhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, ChinaAnhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, ChinaLaboratoire de Physico-Chimie de l’Atmosphère, Université du Littoral Côte d’Opale, 59140 Dunkerque, FranceA fully transportable laser heterodyne radiometer (LHR), involving a flexible polycrystalline mid-infrared (PIR) fiber-coupling system and operating around 8 µm, was characterized and optimized with the help of a calibrated high temperature blackbody source to simulate solar radiation. Compared to a mid-IR free-space sunlight coupling system, usually used in a current LHR, such a fiber-coupling system configuration makes the mid-infrared (MIR) LHR fully transportable. The noise sources, heterodyne signal, and SNR of the MIR LHR were analyzed, and the optimum operating local oscillator (LO) photocurrent was experimentally obtained. The spectroscopic performance of the MIR LHR was finally evaluated. This work demonstrated that the developed fully transportable MIR LHR could be used for ground-based atmospheric sounding measurements of multiple trace gases in the atmospheric column. In addition, it also has high potential for applications on spacecraft or on an airborne platform.https://www.mdpi.com/1424-8220/23/2/978laser heterodyne radiometerpolycrystalline mid-infrared fiberfully transportable |
| spellingShingle | Fengjiao Shen Xueyou Hu Jun Lu Zhengyue Xue Jun Li Tu Tan Zhensong Cao Xiaoming Gao Weidong Chen Performance Characterization of a Fully Transportable Mid-Infrared Laser Heterodyne Radiometer (LHR) Sensors laser heterodyne radiometer polycrystalline mid-infrared fiber fully transportable |
| title | Performance Characterization of a Fully Transportable Mid-Infrared Laser Heterodyne Radiometer (LHR) |
| title_full | Performance Characterization of a Fully Transportable Mid-Infrared Laser Heterodyne Radiometer (LHR) |
| title_fullStr | Performance Characterization of a Fully Transportable Mid-Infrared Laser Heterodyne Radiometer (LHR) |
| title_full_unstemmed | Performance Characterization of a Fully Transportable Mid-Infrared Laser Heterodyne Radiometer (LHR) |
| title_short | Performance Characterization of a Fully Transportable Mid-Infrared Laser Heterodyne Radiometer (LHR) |
| title_sort | performance characterization of a fully transportable mid infrared laser heterodyne radiometer lhr |
| topic | laser heterodyne radiometer polycrystalline mid-infrared fiber fully transportable |
| url | https://www.mdpi.com/1424-8220/23/2/978 |
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