推导出了宽谱段像散同时校正条件，实现了宽谱段像散的同时校正。
The broadband astigmatism corrected simultaneously conditions were deduced, and the astigmatism was corrected in a wide spectral region.
分析像散椭圆高斯光束的传输变换特性，推导出半导体激光束的像散校正与旋转对称化变换公式。
In view of the above, the transformation properties of astigmatic elliptic Gaussian beams are analysed overall, the exact formulas of correcting astigmatism and rotary symmetrize transformation.
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