1 November 2007 High-energy 2 μm Doppler lidar for wind measurements
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Optical Engineering, 46(11), 116201 (2007). doi:10.1117/1.2802584
Abstract
A coherent Doppler lidar at 2 μm wavelength has been built with higher output energy (100 mJ) than previously available. The laser transmitter is based on diode-pumped Ho:Tm:LuLiF, a recently developed laser material that allows more efficient energy extraction. Single-frequency operation is achieved by a ramp-and-fire injection seeding technique. An advanced photodetector architecture is used incorporating photodiodes in a dual-balanced configuration. A digital signal processing system has been built, allowing real-time display of wind and aerosol backscatter data products. The high pulse energy and receiver efficiency provides for measurement of wind fields to ranges not seen before with 2 μm lidars, and example wind measurements were made to show this capability.
Grady J. Koch, Jeffrey Y. Beyon, Bruce W. Barnes, Mulugeta Petros, Jirong Yu, Farzin Amzajerdian, Michael J. Kavaya, Upendra N. Singh, "High-energy 2 μm Doppler lidar for wind measurements," Optical Engineering 46(11), 116201 (1 November 2007). https://doi.org/10.1117/1.2802584
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