Dimensioning adaptive optics for future VLTI projects

Patru, Fabien; Millour, F.; Lai, O.; Carbillet, Marcel; Eisenhauer, F.; Gillessen, S.; Haase, Maximilian; Hartl, Michael; Haußmann, F.; Bouquin, Jean-Baptiste Le; Lutz, D.; Mandla, Christopher; More, Nikhil; Ott, Thomas; Paumard, T.; Rau, C.; Wieprecht, E.; Woillez, J.; Yazici, S.

doi:10.1117/12.2562433

Cited by 2 publications

References 8 publications

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Opto-mechanical design of GRAVITY+ wavefront sensor

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Genzel,

Eisenhauer

et al. 2024

Optical and Infrared Interferometry and Imaging IX

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The GRAVITY+ project consists of instrumental upgrades to the Very Large Telescope Interferometer (VLTI) for faintscience, high-contrast, milliarcsecond interferometric imaging. As an integral part of the GRAVITY+ Adaptive Optics (AO) architecture, the Wavefront Sensor (WFS) subsystem corrects image distortions caused by the turbulence of Earth's atmosphere. We present the opto-mechanical design of the WFS subsystem and the design strategies used to implement two payloads positioned diagonally opposite each other -Natural Guide Star (NGS) and Laser Guide Star (LGS) -within a single compact design structure. We discuss the implementation of relative motions of the two payloads covering their respective patrol fields and a nested motion within the LGS Payload covering the complete Sodium layer profile in the Earth's atmosphere.

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Opto-mechanical design of GRAVITY+ wavefront sensor

More,

Genzel,

Eisenhauer

et al. 2024

Optical and Infrared Interferometry and Imaging IX

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Atmospheric Research for Adaptive Optics

Bolbasova

Лукин

2022

Atmos Ocean Opt

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Adaptive optics (AO) systems are an essential part of large astronomical telescopes and laser complexes operating through the atmosphere. Each AO system is individually designed; the requirements for the components and the performance of an AO system are determined by the intensity and distribution of turbulent fluctuations of the air refractive index over the radiation propagation path. In this work, we review the techniques and instruments for measuring and forecasting atmospheric conditions for AO, including devices and techniques developed at the Institute of Atmospheric Optics, Siberian Branch, Russian Academy of Sciences. The basic principles of atmospheric AO and the related atmospheric parameters are briefly described. Particular attention is paid to the parameter used for the estimation of capabilities of AO systems, i.e., the wind speed at a level of 200 hPa. The comparison with the data from foreign astronomical observatories is carried out. The necessity for atmospheric research for large Russian astronomical observatories is discussed.

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Dimensioning adaptive optics for future VLTI projects

Cited by 2 publications

References 8 publications

Opto-mechanical design of GRAVITY+ wavefront sensor

Opto-mechanical design of GRAVITY+ wavefront sensor

Atmospheric Research for Adaptive Optics

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