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利用棱镜对引进频谱空间啁啾来补偿飞秒脉冲激光二次谐波产生中的相位失配 ,提高了倍频效率 建立了一套全固态、多波长 ( 1 0 65nm ,5 32nm ,82 3.1nm ,40 2nm)飞秒脉冲激光系统 自制的Nd :YVO4激光器输出 5 32nm绿光激光 ,最高平均功率可达 5 .6W 当用 2 .5W绿光激光泵浦时 ,从自制的钛宝石激光器及经BBO倍频可分别输出中心波长为 82 3.1nm和 40 2nm ,平均功率 30 0mW和73mW ,谱宽 32 .3nm和 5 .1nm ,脉宽 2 2fs和 33.3fs、重复率 1 0 8MHz的近红外和蓝光激光 整个系统具有结构紧凑、倍频效率高、运行稳定的特点
The prism is used to compensate for the phase mismatch in the second harmonic generation of femtosecond pulsed laser by introducing chirp in the spectrum space, which improves the frequency multiplication efficiency and establishes a set of all solid state, multiwavelength (1 0 65nm, 5 32nm, 82 3.1nm , 40 2nm) Femtosecond pulsed laser system Self-made Nd: YVO4 laser output 5 32nm green laser, the maximum average power of up to 5.6W When using 2.5W green laser pump, from the homemade titanium sapphire laser and the BBO frequency doubling can output the center wavelength of 82 3.1nm and 40 2nm respectively, the average power of 30 0mW and 73mW, the spectral width of 32.3nm and 5.1nm, pulse width 2 2fs and 33.3fs, the repetition rate of 1 0 8MHz NIR and The whole system of blue laser has the advantages of compact structure, high frequency multiplication efficiency and stable operation