Generation of 11.5 W coherent red-light by intra-cavity frequency-doubling of a side-pumped Nd:YAG laser in a 4-cm LBO

摘要

We report the generation of high-power, quasi-continuous wave red-light up to 11.5 W in a 4-cm LiB_(3)O_(5) crystal with intracavity frequency-doubling of two compact and simple side-pumped Nd:YAG laser modules under a repetition rate of 3.5 kHz. The beam quality of M~(2) value is 15±3 in both directions. The short-term stability of the red-light source is better than 1% at an output of 9 W. Other characteristics of the red-light laser were also experimentally studied and presented.