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          Institute: MPI für Astronomie     Collection: Publikationen_mpia     Display Documents



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ID: 198304.0, MPI für Astronomie / Publikationen_mpia
Calibration of NAOS and CONICA static
aberrations. Application of the phase diversity
technique
Authors:Blanc, A.; Fusco, T.; Hartung, M.; Mugnier, L. M.; Rousset, G.
Date of Publication (YYYY-MM-DD):2003
Title of Journal:Astronomy and Astrophysics
Journal Abbrev.:Astronomy and Astrophysics
Volume:399
Start Page:373
End Page:383
Review Status:not specified
Audience:Not Specified
Abstract / Description:We describe and evaluate the performance of a
phase diversity wavefront sensor used to measure
the static aberrations of the VLT instrument
NAOS-CONICA. The main limitations of this phase
diversity technique are compiled. We investigate
the systematic errors due to the experimental
implementation and the design restrictions.
Further error sources stem from the imperfect
knowledge of the system, and from limitations of
the algorithm. The influence of these errors on
the wavefront estimation is evaluated on
numerical and experimental data. This study
highlights the essential verifications and
calibrations needed to obtain accurate results
and gives a practical guideline for the
application of a phase diversity wavefront
sensor. The comprehensive calibration results and
the final gain in optical performance are
presented and discussed in a complementary paper
(\cite{Hartung-a-02-thisissue}).
Free Keywords:instrumentation: adaptive optics
External Publication Status:published
Document Type:Article
Communicated by:N. N.
Affiliations:MPI für Astronomie
External Affiliations:Recherches A eacute;rospatiales,
D eacute;partement d'Optique Th eacute;orique
et Appliqu eacute;e, BP 72, 92322
Ch acirc;tillon Cedex, France; Laboratoire des
Signaux et Syst egrave;mes, Eacute;cole
Sup eacute;rieure d' Eacute;lectricit eacute;,
Plateau de Moulon, 91192 Gif-sur-Yvette, France),
AB(Office National d' Eacute;tudes et de
Recherches A eacute;rospatiales,
D eacute;partement d'Optique Th eacute;orique
et Appliqu eacute;e, BP 72, 92322
Ch acirc;tillon Cedex, France),
AC(Max-Planck-Institut f uuml;r Astronomie,
K ouml;nigstuhl 17, 69117 Heidelberg, Germany),
AD(Office National d' Eacute;tudes et de
Recherches A eacute;rospatiales,
D eacute;partement d'Optique Th eacute;orique
et Appliqu eacute;e, BP 72, 92322
Ch acirc;tillon Cedex, France
<EMAIL>laurent.mugnier@onera.fr</EMAIL>),
AE(Office National d' Eacute;tudes et de
Recherches A eacute;rospatiales,
D eacute;partement d'Optique Th eacute;orique
et Appliqu eacute;e, BP 72, 92322
Ch acirc;tillon Cedex, France)
Identifiers:URL:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bi... [ID No:1]
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