Development of Direct-Detection Doppler Wind Lidar for Vertical Atmospheric Motion

Micro-pulse upconversion Doppler lidar for wind and visibility detection in the atmospheric boundary layer.

For the first time, to the best of our knowledge, a compact, eye-safe, and versatile direct detection Doppler lidar is developed using an upconversion single-photon detection method at 1.5 μm. An all-fiber and polarization maintaining architecture is realized to guarantee the high optical coupling efficiency and the robust stability. Using integrated-optic components, the conservation of etendu...

Coherent Doppler lidar for wind farm characterization

Coherent Doppler lidar measurements are of increasing interest for the wind energy industry. Wind measurements are fundamental inputs for the evaluation of potential energy yield and performance of wind farms. Three-dimensional scanning Doppler lidar may provide a new basis for wind farm site selection, design and optimization. In this paper, the authors discuss Doppler lidar measurements obtai...

Impact Assessment of a Doppler Wind Lidar in Space on Atmospheric Analyses and Numerical Weather Prediction

Wind profiles from space would help to fill in data sparse areas over the oceans, the tropics, and the southern hemisphere. ESA has conducted a phase A study for the Earth Explorer Atmospheric Dynamics Mission (ADM). A polar satellite with a Doppler Wind Lidar (DWL) on board is proposed for this mission and which is described in this session by Ingmann. The DWL measures wind profiles in the tro...

Analysis on wind retrieval methods for Rayleigh Doppler lidar

Development of All-fiber coherent Doppler LIDAR system for wind sensing

Coherent Doppler LIDAR is being utilized to develop a mobile wind speed measuring station. We are building an all fiber based eye safe laser system to measure wind speed in urban areas. A 1.5μ.m polarization maintained fiber optics master oscillator power amplifier system is used, which utilizes inexpensive telecommunication components. A heterodyne balanced detection is being used to suppress ...