Progress towards an Autonomous Field Deployable Diode-Laser-Based Differential Absorption Lidar (DIAL) for Profiling Water Vapor in the Lower Troposphere
A laser transmitter has been developed and incorporated into a micro-pulse differential absorption lidar (DIAL) for water vapor profiling in the lower troposphere as an important step towards long-term autonomous field operation. The laser transmitter utilizes two distributed Bragg reflector (DBR) d...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2013-11-01
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| Series: | Remote Sensing |
| Subjects: | |
| Online Access: | http://www.mdpi.com/2072-4292/5/12/6241 |
| _version_ | 1818914557542793216 |
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| author | Kevin S. Repasky Drew Moen Scott Spuler Amin R. Nehrir John L. Carlsten |
| author_facet | Kevin S. Repasky Drew Moen Scott Spuler Amin R. Nehrir John L. Carlsten |
| author_sort | Kevin S. Repasky |
| collection | DOAJ |
| description | A laser transmitter has been developed and incorporated into a micro-pulse differential absorption lidar (DIAL) for water vapor profiling in the lower troposphere as an important step towards long-term autonomous field operation. The laser transmitter utilizes two distributed Bragg reflector (DBR) diode lasers to injection seed a pulsed tapered semiconductor optical amplifier (TSOA), and is capable of producing up to 10 mJ of pulse energy with a 1 ms pulse duration and a 10 kHz pulse repetition frequency. The on-line wavelength of the laser transmitter can operate anywhere along the water vapor absorption feature centered at 828.187 nm (in vacuum) depending on the prevailing atmospheric conditions, while the off-line wavelength operates at 828.287 nm. This laser transmitter has been incorporated into a DIAL instrument utilizing a 35.6 cm Schmidt-Cassegrain telescope and fiber coupled avalanche photodiode (APD) operating in the photon counting mode. The performance of the DIAL instrument was demonstrated over a ten-day observation period. During this observation period, data from radiosondes were used to retrieve water vapor number density profiles for comparisons with the number density profiles retrieved from the DIAL data. |
| first_indexed | 2024-12-19T23:48:17Z |
| format | Article |
| id | doaj.art-19e6f2d199d0423dae07cd438a368b7a |
| institution | Directory Open Access Journal |
| issn | 2072-4292 |
| language | English |
| last_indexed | 2024-12-19T23:48:17Z |
| publishDate | 2013-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Remote Sensing |
| spelling | doaj.art-19e6f2d199d0423dae07cd438a368b7a2022-12-21T20:01:14ZengMDPI AGRemote Sensing2072-42922013-11-015126241625910.3390/rs5126241rs5126241Progress towards an Autonomous Field Deployable Diode-Laser-Based Differential Absorption Lidar (DIAL) for Profiling Water Vapor in the Lower TroposphereKevin S. Repasky0Drew Moen1Scott Spuler2Amin R. Nehrir3John L. Carlsten4Electrical and Computer Engineering, Montana State University, Bozeman, MT 59717, USAElectrical and Computer Engineering, Montana State University, Bozeman, MT 59717, USANational Center for Atmospheric Research, Boulder, CO 80307, USANASA Langley Research Center, Hampton, VA 23681, USAPhysics Department, Montana State University, Bozeman, MT 59717, USAA laser transmitter has been developed and incorporated into a micro-pulse differential absorption lidar (DIAL) for water vapor profiling in the lower troposphere as an important step towards long-term autonomous field operation. The laser transmitter utilizes two distributed Bragg reflector (DBR) diode lasers to injection seed a pulsed tapered semiconductor optical amplifier (TSOA), and is capable of producing up to 10 mJ of pulse energy with a 1 ms pulse duration and a 10 kHz pulse repetition frequency. The on-line wavelength of the laser transmitter can operate anywhere along the water vapor absorption feature centered at 828.187 nm (in vacuum) depending on the prevailing atmospheric conditions, while the off-line wavelength operates at 828.287 nm. This laser transmitter has been incorporated into a DIAL instrument utilizing a 35.6 cm Schmidt-Cassegrain telescope and fiber coupled avalanche photodiode (APD) operating in the photon counting mode. The performance of the DIAL instrument was demonstrated over a ten-day observation period. During this observation period, data from radiosondes were used to retrieve water vapor number density profiles for comparisons with the number density profiles retrieved from the DIAL data.http://www.mdpi.com/2072-4292/5/12/6241DIALtrace gas sensingground-based lidar |
| spellingShingle | Kevin S. Repasky Drew Moen Scott Spuler Amin R. Nehrir John L. Carlsten Progress towards an Autonomous Field Deployable Diode-Laser-Based Differential Absorption Lidar (DIAL) for Profiling Water Vapor in the Lower Troposphere Remote Sensing DIAL trace gas sensing ground-based lidar |
| title | Progress towards an Autonomous Field Deployable Diode-Laser-Based Differential Absorption Lidar (DIAL) for Profiling Water Vapor in the Lower Troposphere |
| title_full | Progress towards an Autonomous Field Deployable Diode-Laser-Based Differential Absorption Lidar (DIAL) for Profiling Water Vapor in the Lower Troposphere |
| title_fullStr | Progress towards an Autonomous Field Deployable Diode-Laser-Based Differential Absorption Lidar (DIAL) for Profiling Water Vapor in the Lower Troposphere |
| title_full_unstemmed | Progress towards an Autonomous Field Deployable Diode-Laser-Based Differential Absorption Lidar (DIAL) for Profiling Water Vapor in the Lower Troposphere |
| title_short | Progress towards an Autonomous Field Deployable Diode-Laser-Based Differential Absorption Lidar (DIAL) for Profiling Water Vapor in the Lower Troposphere |
| title_sort | progress towards an autonomous field deployable diode laser based differential absorption lidar dial for profiling water vapor in the lower troposphere |
| topic | DIAL trace gas sensing ground-based lidar |
| url | http://www.mdpi.com/2072-4292/5/12/6241 |
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