Analysis on the misalignment errors between Hartmann-Shack sensor and 45-element deformable mirror

Lihui Liu; Yi Zhang; Jianjun Tao; Fen Cao; Yin Long; Pingchuan Tian; Shangwu Chen

doi:10.1117/12.2267039

10 February 2017 Analysis on the misalignment errors between Hartmann-Shack sensor and 45-element deformable mirror

Lihui Liu, Yi Zhang, Jianjun Tao, Fen Cao, Yin Long, Pingchuan Tian, Shangwu Chen

Proceedings Volume 10250, International Conference on Optical and Photonics Engineering (icOPEN 2016); 102502B (2017) https://doi.org/10.1117/12.2267039
Event: Fourth International Conference on Optical and Photonics Engineering, 2016, Chengdu, China

Abstract

Aiming at 45-element adaptive optics system, the model of 45-element deformable mirror is truly built by COMSOL Multiphysics, and every actuator’s influence function is acquired by finite element method. The process of this system correcting optical aberration is simulated by making use of procedure, and aiming for Strehl ratio of corrected diffraction facula, in the condition of existing different translation and rotation error between Hartmann-Shack sensor and deformable mirror, the system’s correction ability for 3-20 Zernike polynomial wave aberration is analyzed. The computed result shows: the system’s correction ability for 3-9 Zernike polynomial wave aberration is higher than that of 10-20 Zernike polynomial wave aberration. The correction ability for 3-20 Zernike polynomial wave aberration does not change with misalignment error changing. With rotation error between Hartmann-Shack sensor and deformable mirror increasing, the correction ability for 3-20 Zernike polynomial wave aberration gradually goes down, and with translation error increasing, the correction ability for 3-9 Zernike polynomial wave aberration gradually goes down, but the correction ability for 10-20 Zernike polynomial wave aberration behave up-and-down depression.

Citation Download Citation

Lihui Liu, Yi Zhang, Jianjun Tao, Fen Cao, Yin Long, Pingchuan Tian, and Shangwu Chen "Analysis on the misalignment errors between Hartmann-Shack sensor and 45-element deformable mirror", Proc. SPIE 10250, International Conference on Optical and Photonics Engineering (icOPEN 2016), 102502B (10 February 2017); https://doi.org/10.1117/12.2267039

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