The diffraction modulation of ultrashort pulsed-laser is less than that of CW laser, so only serrated aperture can be used to get uniform near-field uniform intensity distribution.

和单色激光的衍射不同，宽带的飞秒光束衍射调制较小，直接利用锯齿光阑，便能获得近场光强分布相对均匀的光束。

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In this paper, a new method, which USES only one phase aperture to obtain uniform distribution from Gaussian beam, is proposed, the calculation results are given.

本文提出只用一个简单的相位光阑实现高斯光束强度均匀化的新方法，给出了计算结果。

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