自适应光学系统中非共轭问题对波前校正的影响

在常规的自适应光学系统中,变形镜与波前传感器满足共轭位置关系以保证最好的校正效果。现基于角谱理论,通过对光场线性传输过程的仿真,分析了波前传感器偏离与变形镜共轭的位置的情况下波前校正效果所受到的影响。结果表明,波前传感器偏离共轭位置的距离增大和共轭位置波前的增大,均会导致校正效果变差。

The influence of non-conjugate problem on the wavefront correction in the adaptive optical system

In normal adaptive optical system,the deformable mirror and the wavefront sensor are conjugated in order to achieve the best wavefront correction.Based on the theory of angular spectrum,the influence on the wavefront correction is analyzed under the condition that the wavefront sensor is away from the position conjugated to the deformable mirror in this paper,and the analysis is carried out through simulation of linear propagation of light field.Results show that the increase of the distance from the wavefront sensor to the conjugate position and the increase of the wavefront in the conjugate position will both degrade the wavefront correction.