24 October 2017 Linear verification of model-based wavefront sensorless adaptive optics system
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Proceedings Volume 10462, AOPC 2017: Optical Sensing and Imaging Technology and Applications; 104624N (2017) https://doi.org/10.1117/12.2285567
Event: Applied Optics and Photonics China (AOPC2017), 2017, Beijing, China
Abstract
In recent years, the wavefront sensorless adaptive optics (AO) system receives extensive research and the model-based control AO system as one of the most systems will become the most promising one. The model-based AO control system depends on a linear relationship between second moments of the wavefront gradients and masked far-field intensity distribution. Before investigating whether the model-based control algorithm has a good correction capability, the linear relationship must be verified. In order to testify the linear relationship, an adaptive optics system experiment platform is established with a 37-element deformable mirror and a CCD camera. The CCD camera measures the information of far-field intensity distribution and the Hartmann Shack gets sensor information of wavefront distribution. The linear relationship is analyzed based on above the information. Result shows that there is a linear relationship between second moments of the wavefront gradients and masked far-field intensity distribution and the slop is 0.018, which is very close to the theoretical value 1 / (4π2).
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Bin Wang, Bin Wang, Liang Ma, Liang Ma, Chenglong Gong, Chenglong Gong, Huizhen Yang, Huizhen Yang, } "Linear verification of model-based wavefront sensorless adaptive optics system", Proc. SPIE 10462, AOPC 2017: Optical Sensing and Imaging Technology and Applications, 104624N (24 October 2017); doi: 10.1117/12.2285567; https://doi.org/10.1117/12.2285567
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