The pyramid wavefront sensor used in the closed-loop adaptive optics system

Shengqian Wang; Kai Wei; Wenjia Zheng; Changhui Rao

doi:10.1117/12.2231944

4 October 2016 The pyramid wavefront sensor used in the closed-loop adaptive optics system

Shengqian Wang, Kai Wei, Wenjia Zheng, Changhui Rao

Proceedings Volume 9909, Adaptive Optics Systems V; 99096W (2016) https://doi.org/10.1117/12.2231944
Event: SPIE Astronomical Telescopes + Instrumentation, 2016, Edinburgh, United Kingdom

Abstract

Pyramid wavefront sensor is a promising sensor technology based on the beam splitting in the focal plane. Due to its advantages of adjustable gain and variable spatial sampling, the pyramid wavefront sensor has been successfully applied in many large telescopes. In recent years, we have carried out the related research of this sensor. Firstly we studied the adaptive optical closed-loop system based on the liquid crystal spatial light modulator and the pyramid wavefront sensor. Subsequently, the adaptive optical system based on the pyramid wavefront sensor and the deformable mirror is studied in our lab. Currently the experiment on the 1.8-m telescope at Yunnan observatory has been successfully carried out and the high resolution images of the natural stellar star have been obtained. The experiment results are present in this paper.

Citation Download Citation

Shengqian Wang, Kai Wei, Wenjia Zheng, and Changhui Rao "The pyramid wavefront sensor used in the closed-loop adaptive optics system", Proc. SPIE 9909, Adaptive Optics Systems V, 99096W (4 October 2016); https://doi.org/10.1117/12.2231944

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