26 July 2016 The adaptive optics system of the 1.5m GREGOR solar telescope: four years of operation
Author Affiliations +
We present the properties of the adaptive optics (AO) system of the German 1.5m solar telescope GREGOR, located on the island of Tenerife, Spain. The conventional AO system uses a correlating Shack-Hartmann-Sensor with a 92mm subaperture size and a 256-actuator stacked-piezo deformable mirror (DM). AO performance results and practical experience based on the last four years of operation are presented. A recently installed second wavefront sensor with exchangeable lenslets / subaperture sizes in combination with an EM-CCD camera is used for low light observations such as polarimetric measurements of the solar system planets. Further developments include algorithmic improvements, the use of the night-time sensor for solar (off-limb) observations and solar MCAO.
© (2016) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Thomas Berkefeld, Thomas Berkefeld, Dirk Schmidt, Dirk Schmidt, Dirk Soltau, Dirk Soltau, Frank Heidecke, Frank Heidecke, Andreas Fischer, Andreas Fischer, } "The adaptive optics system of the 1.5m GREGOR solar telescope: four years of operation", Proc. SPIE 9909, Adaptive Optics Systems V, 990924 (26 July 2016); doi: 10.1117/12.2232604; https://doi.org/10.1117/12.2232604


Upgrades to the AO system of the 1.5m Gregor solar...
Proceedings of SPIE (July 12 2018)
The ERIS adaptive optics system
Proceedings of SPIE (July 26 2016)
The new MMT
Proceedings of SPIE (September 28 2004)

Back to Top