Emulation of dual-conjugate adaptive optics on an 8-m class telescope

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In this article we present a downscaled laboratory setup emulating five natural guide stars, a layered static atmosphere and a 7.5-m aperture telescope equipped with dual-conjugate adaptive optics at a wavelength of 2.2 mum. Three reconstruction alternatives were evaluated; conventional adaptive optics, field-averaged conventional adaptive optics and dual-conjugate adaptive optics. The results were compared with Zemax-simulations of the setup. The expected increase of the size of the isoplanatic patch, using dual-conjugate adaptive optics, was confirmed. (C) 2003 Optical Society of America.


  • Per Knutsson
  • Mette Owner-Petersen
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Atom and Molecular Physics and Optics
Original languageEnglish
Pages (from-to)2231-2237
JournalOptics Express
Issue number18
Publication statusPublished - 2003
Publication categoryResearch