Study on Pr-doped LiYF4 Crystal Spectrum and Red Laser

1960年，Maiman第一次实现红宝石激光器辐射开始，已经研制成功不同类型的固体激光器。早期发展最快的固体激光器是Nd:YAG激光器，之后固体激光器的发展开始变得缓慢，气体和染料激光器开始成为研究重点。但是在80年代中期固体激光器得以迅速发展，这是由于半导体激光二极管效率提升，可以实现全固态，小型化，结构紧凑的激光器。此外，新型激光材料的研究也取得重要进展，而在可见光领域，三价Pr3+稀土离子掺杂增益材料随之成为重要研究课题。 本论文首先介绍了二极管泵浦固体激光器的应用领域和本课题研究的背景，在绪论中重点介绍国外和国内关于Pr3+:LiYF4激光器的最新研究进展。而后，简单探讨与固体激光...In 1960, Maiman operated the ruby (Cr3+:Al2O3) laser in the Hughes Research Laboratories (HRL). His discovery of simulated emission of optical radiation contributed to the develop of the many solid-state lasers, especially the early development of the Nd:YAG laser. And that became one of the most important solid-state laser. But solid-state laser research was some kind of not well probed in the l...学位：工学硕士院系专业：信息科学与技术学院_光学工程学号：2312010115297

蓝光激光二极管抽运Pr:YLF绿光激光器

报道了蓝光激光二极管抽运的掺镨氟化钇锂(Pr:YLF)固体绿光激光器。采用长度5mm、掺杂离子数分数为0.5%的Pr:YLF晶体作为激光增益介质,在中心波长444nm的蓝光激光二极管抽运下,获得波长522.4nm的连续绿光激光输出。应用不同透射率的输出耦合镜研究了激光器的输入输出特性。在吸收抽运光功率530mW,输出镜透射率为1.9%时获得最大输出功率为90.1mW,斜率效率达到65.3%

Blue Laser Diode Pumped Pr~(3+):YLF Visible Lasers

报道了蓝光激光二极管(ld)(中心波长约为444nM)单端纵向抽运掺镨氟化钇锂(Pr3+:ylf)的红光(640nM)和绿光(522nM)激光器。用单个棱镜作为抽运光束整形器,实验中红光最高输出功率为308.5MW,其相应的抽运阈值功率为46MW,斜率效率为47.5%;绿光这三个指标的值相应分别为193.4MW、162.3MW和37.1%。结果表明抽运光的整形提升了红、绿光的输出特性。Red(640 nm)and green(522 nm)lasers with Pr3+:YLF pumped by a blue laser diode emitting at about 444 nm in the longitudinal direction are reported.On the basis of the beam reshaping of the pump spot by aprism,the maximum output power,absorbed threshold pump power and slope efficiency of the red laser are 308.5 mW,46 mW and 47.5%,respectively.The three corresponding parameter values for green laser are 193.4 mW,162.3 mW and 37.1%,respectively.The results show that the shaped pump beam is beneficial to improve the output characteristics of these two visible laser emissions.国家自然科学基金(61275050); 博士点基金(20120121110034); 厦门市科技项目(3502Z20113004