Simulation model based approach for long exposure atmospheric point spread function reconstruction for laser guide star multiconjugate adaptive optics

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DOIResolve DOI: http://doi.org/10.1364/AO.51.007443
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TypeArticle
Journal titleApplied Optics
ISSN0003-6935
Volume51
Issue31
Pages74437458; # of pages: 16
SubjectClassical schemes; Differential photometry; Field of views; Fourier; Laser guide star; Multiconjugate adaptive optics; Point spread function reconstruction; Post-processing system; Real systems; Reconstruction accuracy; Simulation model; Telemetry data; Thirty Meter Telescope; Adaptive optics; Astrophysics; Lasers; Optical transfer function; Stars; Computer simulation
AbstractThis paper discusses an innovative simulation model based approach for long exposure atmospheric point spread function (PSF) reconstruction in the context of laser guide star (LGS) multiconjugate adaptive optics (MCAO). The approach is inspired from the classical scheme developed by Véran et al. [J. Opt. Soc. Am. A 14, 3057 (1997)] and Flicker et al. [Astron. Astrophys. 400, 1199 (2003)] and reconstructs the long exposure optical transfer function (OTF), i.e., the Fourier transformed PSF, as a product of separate long-exposure tip/tilt removed and tip/tilt OTFs, each estimated by postprocessing system and simulation telemetry data. Sample enclosed energy results assessing reconstruction accuracy are presented for the Thirty Meter Telescope LGS MCAO system currently under design and show that percent level absolute and differential photometry over a 30 arcsec diameter field of view are achievable provided the simulation model faithfully represents the real system. © 2012 Optical Society of America.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada (NRC-CNRC); NRC Herzberg Institute of Astrophysics (HIA-IHA)
Peer reviewedYes
NPARC number21269293
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Record identifiered41cea3-db35-4d53-baa2-4c8f26f746b7
Record created2013-12-12
Record modified2016-05-09
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