Abstract
Abstract Large aperture telescope with its high concentrated capability and high resolution plays an important role in many fields. The demand for large aperture imaging telescope is increasingly urgent, there are a lot of challenges with the increase of telescope aperture during the optical processing and testing. In order to solve the above problems, this paper mainly studies wavefront sensing technology which is the key technology in the adaptive optics system, launches a comprehensive in-depth study on the pupil plane wavefront sensor and focal plane wavefront sensor, introduced the pupil wavefront detector and focal plane wavefront detector, and then compares both of them, this work has important implications for theoretical research and engineering applications, providing a favorable guidance for the practical application of adaptive optics system is also needed for the large-diameter telescope distortion and provides a reference wavefront aberration detector.
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