7 July 2000 3D mapping of turbulence: a laboratory experiment
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Abstract
In this paper, we present the first experimental results of the 3D mapping method. 3D mapping of turbulence is a method to remove the cone effect with multiple laser guide stars and multiple deformable mirrors. A laboratory experiment was realized to verify the theoretical predictions. The setup consisted of two turbulent phase screens (made with liquid crystal devices) and a Shack-Hartmann wavefront sensor. We describe the interaction matrix involved in reconstructing Zernike commands for multiple deformable mirror from the slope measurements made from laser guide stars. It is shown that mirror commands can indeed be reconstructed with the 3D mapping method. Limiting factors of the method, brought to light by this experiment are discussed.
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Miska Le Louarn, Miska Le Louarn, Christopher Dainty, Christopher Dainty, Carl Paterson, Carl Paterson, Michel Tallon, Michel Tallon, } "3D mapping of turbulence: a laboratory experiment", Proc. SPIE 4007, Adaptive Optical Systems Technology, (7 July 2000); doi: 10.1117/12.390367; https://doi.org/10.1117/12.390367
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