报道了一种锁波长914 nm共振抽运的Nd∶YVO4/LBO腔内倍频的绿光激光器,利用锁波长914 nm的半导体激光器作为抽运源,极大地提高了抽运的均匀性和抽运效率,降低了激光器的热效应,从而获得了高光束质量的532 nm激光输出。当抽运功率为18 W,调制频率为130 kHz时,获得了最高输出功率为6.7 W的绿光,入射抽运光的光-光转换效率为37.2%,对应的吸收抽运光的光-光转换效率为60%。

Herein, we report an efficient wavelength-locked 914-nm laser diode in-band pumped intracavity frequency doubling green laser. In our experiment, a wavelength-locked 914-nm laser diode is used as the pumping source to realize good pump uniformity and efficiency and substantially reduce the thermal effect of the laser. A 532-nm laser output with high beam quality is obtained. At a pump power of 18 W and a repetition rate of 130 kHz, the maximum power output of 6.7 W for green laser is obtained. For this pumping power, the conversion efficiency is 37.2%, which corresponds to a conversion efficiency of 60% for absorbed pumping.