A coherent Doppler lidar based on a single-frequency injection-locked
TEA CO2 laser is described. To satisfy the requirements to the radiato
rs of Doppler TEA CO2 lidars, we optimized the composition of working
gas mixture and the durations of pump current pulse in order to obtain
a minimum bandwidth of generated radiation for a fixed output energy.
Using a model describing real temporal and spectral parameters of the
probing laser pulse, we measured the wind velocity profiles along hor
izontal and vertical paths up to 10 km long.