LD泵浦的高效率全固体低噪声绿激光器

LD-pumped high efficiency all-solid-state Low noise green laser

介绍了一种LD泵浦的高效率全固体Nd :YVO4 /LBO低噪声绿激光器。使用LBO晶体腔内倍频避免了KTP易出现的灰线问题 ;用三镜折叠腔结构可减少Nd :YVO4 对绿光的吸收 ;满足了基模光斑与泵浦光斑的模匹配条件 ;使LBO在高的基频光功率密度下可得到较高的倍频效率。实验证明 ,该结构能够实现高效率的稳定绿光输出。在泵浦光功率为 1 6W时 ,稳定输出功率达 2 5 8mW ,光光转换效率达 16 1%。

A design of LD-pumped all-solid-state Nd:YVO 4/LBO low noise green laser was reported in this paper.KTP crystal that is easy to produce gray tracks was replaced with LBO for intracavity frequency doubling.The green laser absorption by Nd:YVO 4 was eliminated by using a V-shaped folded resonator.The mode matching was easy to obtain and the SHG efficiency was high.It was proved by the experiment that the design was very effective.With 1.6W pumped laser,258mW low noise stable green laser output was obtained.The optical conversion efficiency reached to 16.1%.