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详细论述了环路径向剪切干涉(cyclic radial shearing interferometry,CRSI)测量激光光束波前的原理,介绍了 傅立叶变换空间载波条纹相位提取方法,以及畸变波前的重建算法,给出了数值仿真结果,并且进行了实验研究,验证了该 方法的有效性。
The principle of measuring the wavefront of the laser beam by cyclic radial shearing interferometry (CRSI) is discussed in detail. The extraction method of the fringe phase of the Fourier transform space carrier wave and the reconstruction algorithm of the distortion wavefront are introduced. The numerical simulation results , And conducted experimental studies to verify the effectiveness of the method.