Abstract
In adaptive optics (AO) system, the traditional Hartmann wave-front sensor can only be used to effectively correct atmospheric turbulence within a small field of view, while the light field camera served as the wave-front sensor has the characteristics of large field of view and multi-angle directional turbulence information obtained by one single exposure, which can replace multiple wave-front sensors in the traditional multi-layered conjugation adaptive optics (MCAO) system and simplify the system and save costs. In this paper, the light field camera module in Seelight, an optical system simulation software independently developed, was used to restore the complete wavefront of the large field of view combining the optical field digital refocusing technology and the mode atmospheric analysis technology. An adaptive optical simulation system was built with a light field camera and a 89 unit deformable mirror. The simulation results show that the optimized AO system can effectively correct the wavefront distortion caused by atmospheric turbulence in a large field of view under the closed loop working mode.
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