报道了一种激光二极管(LD)端面泵浦10at％掺杂Yb∶YAG激光晶体(4×4×1 mm)和Ⅰ类临界相位匹配LBO的腔内倍频全固态绿光激光器.为了克服“绿光问题”，采用了两个激光二极管偏振耦合系统.在双路泵浦功率为1.2 W时，获得最高功率为40 mW 525 nm的连续基模激光输出.在腔内插入Cr4＋:YAG饱和吸收体被动调Q，在泵浦功率为1.2 W时，可以获得平均功率为5.2 mW，脉冲重复频率为2.44 kHz，脉冲宽度为51.5 ns，峰值功率为41.7 W的515 nm脉冲激光输出.输出波长发生变化，而且515 nm脉冲激光输出的阈值仅为728 mW.

A laser diode end-pumped 10at% doped Yb∶YAG microchip crystal intracavity frequency doubled all solid-stated green laser was reported.In order to overcome the problem of green problem of SHG,two polarization-coupled laser diodes system were used.With the pump power of 1.2 W,40 mW TEM00 continuous wave laser at 525 nm was obtained，and the optical conversion efficiency is 3.3%.When inserting Cr4+∶YAG crystal with 98% low-power transmission in the resonator,the maximum output power of 5.2 mW,pulse duration width of 51.5 ns，the pulse repetition rate of 2.44 kHz and the peak power of 41.7 W at 515 nm were achieved when the pump power was 1.2 W.The wavelength was changed from 525nm to 515nm and the threshold was only 728 mW.