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Robust 1550-nm single-frequency all-fiber ns-pulsed fiber amplifier for wind-turbine predictive control by wind lidar

: Beier, Franz; Vries, Oliver de; Schreiber, Thomas; Eberhardt, Ramona; Tünnermann, Andreas; Bollig, Christoph; Hofmeister, Paul Gerke; Schmidt, Jochen; Reuter, Rainer


Hendow, S.T. (Ed.) ; Society of Photo-Optical Instrumentation Engineers -SPIE-, Bellingham/Wash.:
Fiber Lasers X. Technology, Systems, and Applications : San Francisco, California, USA; February 02, 2013
Bellingham, WA: SPIE, 2013 (Proceedings of SPIE 8601)
ISBN: 978-0-8194-9370-5
Paper 86012S
Conference "Fiber Lasers - Technology, Systems, and Applications" <10, 2013, San Francisco/Calif.>
Fraunhofer IOF ()
wind turbine control; coherent lidar; fiber amplifier; stimulated brillouin scattering

Scaling of the power yield of offshore wind farms relies on the capacity of the individual wind turbines. This results in a trend to very large rotor diameters, which are difficult to control. It is crucial to monitor the inhomogeneous wind field in front of the wind turbines at different distances to ensure reliable operation and a long lifetime at high output levels. In this contribution, we demonstrate an all-fiber ns-pulsed fiber amplifier based on cost-efficient commercially available components. The amplifier is a suitable source for coherent Doppler lidar pulses making a predictive control of the turbine operation feasible.