采用相位闪耀光栅原理设计出用于ＩＣＦ驱动器中能离轴分离基频、二倍频、三倍频激光的色分离相位光栅，理论上三倍频零级衍射效率达到１００％，同时，对该相位光栅进行了实际制作和实验测量，测出了基频光和二倍频光的分离角以及光栅的零级衍射效率，得到了一些有意义的结果 The principle of phase blazed grating was used to design a color separation phase grating for ICF driver capable of off-axis separation of fundamental frequency, second harmonic frequency and third harmonic frequency. In theory, the third harmonic frequency zero order diffraction efficiency reaches 100% The phase grating was actually fabricated and experimentally measured. The separation angles of the fundamental frequency and the second harmonic were measured, and the zero-order diffraction efficiency of the grating was obtained. Some meaningful results were obtained