中文摘要：

报道了激光二极管抽运下的高效率Yb：YGG连续及锁模激光器。实验中采用光学浮区法生长的高质量Yb：YGG激光晶体,在6.7 W的入射抽运功率下得到了1.95 W的激光输出,光-光转换效率为29.1%,最大斜率效率为60%。用半导体可饱和吸收镜启动锁模,在没有补偿色散的情况下得到了1 W的激光输出,光-光转换效率为18.2%,脉冲宽度为2.1 ps,中心波长位于1035 nm。

英文摘要：

An efficient laser diode-pumped Yb：YGG laser is demonstrated by using a high quality Yb：YGG crystal grown by optical floating zone method,output power up to 1.95 W has been obtained under incident pump power of 6.7 W,corresponding to optical-to-optical efficiency of 29.1% and maximum slop efficiency of 60%.By using a semiconductor saturable mirror absorber（SESAM） to start and sustain the mode-locking,stable laser pulses of 2.1 ps has been obtained without dispersion compensation.The central wavelength is 1035 nm and the output power is 1 W,corresponding to optical-to-optical efficiency of 18.2%.