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          Institute: MPI für Astronomie     Collection: Publikationen_mpia     Display Documents



ID: 661049.0, MPI für Astronomie / Publikationen_mpia
Pupil rotation compensation for LINC-NIRVANA
Authors:Brangier, M.; Conrad, A. R.; Bertram, T.; Zhang, X.; Berwein, J.; Briegel, F.; Herbst, T. M.; Ragazzoni, R.
Publisher:SPIE
Date of Publication (YYYY-MM-DD):2012
Title of Proceedings:Adaptive Optics Systems III
Volume (in Series):8447
Name of Conference/Meeting:Adaptive Optics Systems III
Audience:Not Specified
Abstract / Description:The interferometric imager LINC-NIRVANA will use pyramid wavefront-sensors for multi-conjugated adaptive optics (MCAO). A derotator will produce a static field on the pyramids, but a rotating pupil image on the CCD. For long exposure times, we have to take into account this effect to command the deformable mirror properly by changing the command matrix on the fly. We reproduce in a laboratory set-up this configuration to test different methods for compensating for this effect. We present the results obtained and the optimal solution we have selected.
Comment of the Author/Creator:Date: 2012, July 1, 2012
External Publication Status:published
Document Type:Conference-Paper
Communicated by:N. N.
Affiliations:MPI für Astronomie
Identifiers:URL:http://cdsads.u-strasbg.fr/abs/2012SPIE.8447E..2UB
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