3D mapping of turbulence: A laboratory experiment

  • M. Le Louarn
  • , C. Dainty
  • , C. Paterson
  • , M. Tallon

Research output: Contribution to a Journal (Peer & Non Peer)Conference articlepeer-review

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.

Original languageEnglish
Pages (from-to)II/-
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume4007
Publication statusPublished - 2000
Externally publishedYes
EventAdaptive Optical Systems Technology - Munich, Ger
Duration: 29 Mar 200031 Mar 2000

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