色分离光栅对输入波前畸变宽容度的研究
Study on tolerance of input wavefront aberration for color separation gratings
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摘要: 采用频域分段的方法，对强激光系统的波前畸变进行了理论分析；使用随机相位屏构建低频畸变波前模型，并提出采用迭代算法构建中高频畸变波前模型。使用构建的畸变波前模型作为输入，通过模拟计算，给出了色分离光栅对输入波前畸变宽容度的初步规律。Abstract: Through spectral analysis method, a theoretical analysis of wavefront aberration is made in intense laser system. The random phase screen is applied to reconstruct the wavefront in the domain of low spatial frequency, and a new iterative algorithm is proposed and used to reconstruct the wavefront in the domain of high spatial frequency. With the reconstructed wavefront, the effect of the wavefront aberration on the function of CSG is calculated. The preliminary conclusion is presented, which shows the rule of the tolerance of input wavefont aberration for CSG.
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