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1 November 2007 High-energy 2 μm Doppler lidar for wind measurements
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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.
©(2007) Society of Photo-Optical Instrumentation Engineers (SPIE)
Grady J. Koch, Jeffrey Y. Beyon, Bruce W. Barnes, Mulugeta Petros, Jirong Yu, Farzin Amzajerdian, Michael J. Kavaya, and Upendra N. Singh "High-energy 2 μm Doppler lidar for wind measurements," Optical Engineering 46(11), 116201 (1 November 2007).
Published: 1 November 2007

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