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13 September 2012 Pupil rotation compensation for LINC-NIRVANA
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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.
© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Matthieu Brangier, Albert R. Conrad, Thomas Bertram, Xianyu Zhang, Juergen Berwein, Florian Briegel, Thomas M. Herbst, and Roberto Ragazzoni "Pupil rotation compensation for LINC-NIRVANA", Proc. SPIE 8447, Adaptive Optics Systems III, 84472U (13 September 2012); doi: 10.1117/12.927121;

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