19 August 1998 Eye-safe all-solid state laser for coherent wind lidar in space
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Abstract
Global wind measurement is a key component of weather prediction. Coherent wind lidar provides excellent wind profile measurement sensitivity and accuracy through the use of heterodyne detection technique. A high pulse energy, high beam quality, very narrow linewidth laser is essential for successful coherent wind detection. We have developed an eye- safe all solid state Ho:Tm:YLF power oscillator with ring configuration to be used as coherent lidar transmitter. It achieved an optical to optical efficiency of 0.03. A Q- switched output energy as high as 109 mJ at 6 Hz, with a pulse width of 170 ns is obtained. The resonator alignment sensitivity, heat dissipation efficiency and polarization extinction ratio are all characterized for space application lidar. Laser performance as a function of laser rod temperature and pump intensity has also been investigated. The high power and high beam quality of this laser make it well suited for use as a coherent wind lidar transmitter on a space platform.
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Jirong Yu, Jirong Yu, Upendra N. Singh, Upendra N. Singh, Norman P. Barnes, Norman P. Barnes, James C. Barnes, James C. Barnes, Mulugeta Petros, Mulugeta Petros, Mark W. Phillips, Mark W. Phillips, } "Eye-safe all-solid state laser for coherent wind lidar in space", Proc. SPIE 3504, Optical Remote Sensing for Industry and Environmental Monitoring, (19 August 1998); doi: 10.1117/12.319560; https://doi.org/10.1117/12.319560
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