Paper
24 December 2003 Design and expected performance of an MCAO system for the Giant Magellan Telescope
N. Mark Milton, Michael Lloyd-Hart, Andrew Cheng, James A. Georges III, James Roger P. Angel
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Abstract
Adaptive optics will play a crucial role in achieving the full potential of the next generation of large diameter telescopes. In this paper, we present an optical design for a multi-conjugate adaptive optics system for the Giant Magellan Telescope, a 25.7 m telescope with a primary mirror consisting of seven 8.4 m segments. The tri-conjugate MCAO optics is based on adaptive secondary technology developed for the MMT telescope and incorporates dynamic refocus optics for the laser guide star wavefront sensors. We use the results of analytic (non-Monte-Carlo) numerical simulations to determine the optimal configuration of deformable mirrors as well as laser and natural guide stars. The simulation results are extended to include and quantify the effects of wavefront sensor and control loop delay noise as well as dynamic refocus and fitting error on the expected system performance and sky coverage.
© (2003) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
N. Mark Milton, Michael Lloyd-Hart, Andrew Cheng, James A. Georges III, and James Roger P. Angel "Design and expected performance of an MCAO system for the Giant Magellan Telescope", Proc. SPIE 5169, Astronomical Adaptive Optics Systems and Applications, (24 December 2003); https://doi.org/10.1117/12.511742
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Cited by 10 scholarly publications.
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KEYWORDS
Mirrors

Telescopes

Wavefront sensors

Adaptive optics

Stars

Rayleigh guide stars

Sodium

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