The numerical simulation tool for the MAORY multiconjugate adaptive optics system

The Multiconjugate Adaptive Optics RelaY (MAORY) is and Adaptive Optics module to be mounted on the ESO European-Extremely Large Telescope (E-ELT). It is an hybrid Natural and Laser Guide System that will perform the correction of the atmospheric turbulence volume above the telescope feeding the Multi-AO Imaging Camera for Deep Observations Near Infrared spectro-imager (MICADO). We developed an end-to-end Monte- Carlo adaptive optics simulation tool to investigate the performance of a the MAORY and the calibration, acquisition, operation strategies. MAORY will implement Multiconjugate Adaptive Optics combining Laser Guide Stars (LGS) and Natural Guide Stars (NGS) measurements. The simulation tool implement the various aspect of the MAORY in an end to end fashion. The code has been developed using IDL and use libraries in C++ and CUDA for efficiency improvements. Here we recall the code architecture, we describe the modeled instrument components and the control strategies implemented in the code.

[1]  D. Winker.  Effect of a finite outer scale on the Zernike decomposition of atmospheric optical turbulence , 1991 .

[2]  Bernard Delabre,et al.  On-sky Testing of the Multi-Conjugate Adaptive Optics Demonstrator , 2007 .

[3]  Steven G. Johnson,et al.  The Design and Implementation of FFTW3 , 2005, Proceedings of the IEEE.

[4]  A. Kolmogorov.  The local structure of turbulence in incompressible viscous fluid for very large Reynolds numbers , 1991, Proceedings of the Royal Society of London. Series A: Mathematical and Physical Sciences.

[5]  J. Spyromilio,et al.  The European Extremely Large Telescope (E-ELT) , 2007 .

[6]  Roberto Gilmozzi,et al.  The 42m European ELT: status , 2008, Astronomical Telescopes + Instrumentation.

[7]  Roberto Ragazzoni,et al.  Toward the first light of the Layer Oriented Wavefront Sensor for MAD. , 2007 .

[8]  Kari Karhunen,et al.  Über lineare Methoden in der Wahrscheinlichkeitsrechnung , 1947 .

[9]  Norbert Hubin,et al.  MAD star oriented: laboratory results for ground layer and multi-conjugate adaptive optics , 2006, SPIE Astronomical Telescopes + Instrumentation.

[10]  A. Baruffolo,et al.  MAD: practical implementation of MCAO concepts , 2005 .

[11]  E. Diolaiti,et al.  MAORY: A Multi-conjugate Adaptive Optics RelaY for the E-ELT , 2010 .

[12]  Horace W. Babcock,et al.  THE POSSIBILITY OF COMPENSATING ASTRONOMICAL SEEING , 1953 .

[13]  Christopher J. Evans,et al.  The European Extremely Large Telescope , 2008 .

[14]  Jacques M. Beckers,et al.  Increasing the size of the isoplanatic patch with multiconjugate adaptive optics. , 1988 .

[15]  Roberto Ragazzoni,et al.  Layer-oriented simulation tool. , 2004, Applied optics.

[16]  Jacques M. Beckers,et al.  Detailed Compensation Of Atmospheric Seeing Using Multiconjugate Adaptive Optics , 1989, Defense, Security, and Sensing.

[17]  H. W. Babcock,et al.  Adaptive Optics Revisited , 1990, Science.

[18]  Roberto Ragazzoni,et al.  Layer oriented wavefront sensor for MAD on sky operations , 2008, Astronomical Telescopes + Instrumentation.

[19]  Clive G. Page,et al.  Definition of the Flexible Image Transport System (FITS), version 3.0 , 2010 .

[20]  Roberto Ragazzoni,et al.  MAD the ESO multi-conjugate adaptive optics demonstrator , 2003, SPIE Astronomical Telescopes + Instrumentation.

[21]  A. Kolmogorov.  Dissipation of energy in the locally isotropic turbulence , 1941, Proceedings of the Royal Society of London. Series A: Mathematical and Physical Sciences.

[22]  Douglas G. Currie,et al.  StarFinder: a code to analyse isoplanatic high-resolution stellar fields. , 2000 .

[23]  Fabien Momey,et al.  Fractal iterative method for fast atmospheric tomography on extremely large telescopes , 2010, Astronomical Telescopes + Instrumentation.

[24]  Emiliano Diolaiti,et al.  End to end numerical simulations of the MAORY multiconjugate adaptive optics system , 2014, Astronomical Telescopes and Instrumentation.

[25]  Roberto Ragazzoni,et al.  Preparing for the phase B of the E-ELT MCAO module project , 2014, Astronomical Telescopes and Instrumentation.

[26]  Brent L. Ellerbroek,et al.  Simulations of closed-loop wavefront reconstruction for multiconjugate adaptive optics on giant telescopes , 2003, SPIE Optics + Photonics.

[27]  Gerard Rousset,et al.  First diffraction-limited astronomical images with adaptive optics , 1990, Astronomical Telescopes and Instrumentation.

[28]  Roberto Ragazzoni,et al.  Adaptive optics for 100-m-class telescopes: new challenges require new solutions , 2000, Astronomical Telescopes and Instrumentation.