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The Provence Adaptive optics PYramid Run System (PAPYRUS) is a pyramid-based Adaptive Optics (AO)
system installed at the Coud´e focus of the 1.52m telescope (T152) at the Observatoire de Haute Provence (OHP).
PAPYRUS is a young researcher project that aims to strengthen our knowledge in AO. This bench is an education
tool and technological platform to test and better understand Fourier Filtering Wave-Front sensors operating on
sky.
In the coming months, we will be improving the AO bench and implementing a second stage of correction with a
vector Zernike wavefront sensor (vZWFS). This 2nd stage aims to significantly improve the AO correction of the
1st stage by reducing the temporal error, which is the main limitation of the PAPYRUS bench. To do so, the 2nd
stage will work in the NIR and with a low-order Deformable Mirror (DM) with fast control frequency.
We present the optical setup of this 2nd stage based on a vZWFS. We also present the first simulation results
regarding the 2nd stage obtained with OOPAO.
