Limitation of wavefront tilt sensor in adaptive astronomical telescope

Genrui Cao; Xin Yu; Ruowei Gu; Renzhong Zhou

doi:10.1117/12.22842

1 November 1990 Limitation of wavefront tilt sensor in adaptive astronomical telescope

Genrui Cao, Xin Yu, Ruowei Gu, Renzhong Zhou

Proceedings Volume 1334, Current Developments in Optical Engineering IV; (1990) https://doi.org/10.1117/12.22842
Event: 34th Annual International Technical Symposium on Optical and Optoelectronic Applied Science and Engineering, 1990, San Diego, CA, United States

Abstract

The limitations of a Hartmann type wavefront sensor are theoretically and experimentally studied based on photon counting technique. An experimental set-up for simulation of single subaperture adaptive astronomical telescope is described. The results of experiments and analyses show that a star of the 8th magnitude can be dealt with by this kind of wavefront sensors within 1 ms of time and with A/1O of wavefront distortion detection sensitivity. As for calibration of experiments, an algorithm related to luminous flux at entrance pupil of telescope and its corresponding photo-electron rate detected by the wavefront sensor is presented and yenfied by experiments.

Citation Download Citation

Genrui Cao, Xin Yu, Ruowei Gu, and Renzhong Zhou "Limitation of wavefront tilt sensor in adaptive astronomical telescope", Proc. SPIE 1334, Current Developments in Optical Engineering IV, (1 November 1990); https://doi.org/10.1117/12.22842

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