掺铒钒酸镥钆系列单晶生长及人眼安全连续及脉冲红外激光输出

全固态激光器在高科技产业、科学研究及国家安全等方面有许多不可替代的重要作用，目前正向高功率、小型化和拓展波长的方向发展。人眼安全全固态激光器是当前激光技术发展的一个前言和研究热点。激光晶体是全固态激光器的材料基础。自90年代开始，以铒为激活离子的激光晶体为人们所重视，对Er:YAG和Er:YVO4晶体的生长及激光特性进行了研究。. 本项目以掺铒钒酸钆镥（Er:GdxLu1-xVO4,x=0-1）系列晶体为对象，研究晶体组分、激活离子浓度、敏化离子种类及晶体质量的均匀性对晶体激光特性的影响。以人眼安全连续和超快（脉冲）激光运转为目标，获得优化的掺铒钒酸钆镥晶体。通过本项目的研究将获得固溶体激光系列晶体基本性质（如热导、光谱等）与激光特性（效率、功率、敏化等）间的变化规律，得到优化的人眼安全激光晶体，并实现人眼安全连续和脉冲运转，获得人眼安全全固态激光器原型器件。

All solid state lasers have played an important role in modern science and technology, as well as in military regime and intended to high power, miniature and abundant laser wavelengths. The research and development of eye-safe lasers has been one of hot pots recently in modern laser technology. Laser crystal is the most material basis of all solid state lasers. Since 1990's the erbium doped laser crystals have attracted many attentions. Er:YAG and Er:YVO4 crystals have been grown and their laser performance have been investigated. In this proposal, we will focus our intention to the erbium doped gadolium, and lutetium vanadate serious (Er:GdxLu1-xVO4) crystals. The relationships among the contents of the crystals and dopants (including sensitized ions), homogeneity, and laser characters will be fully investigated. A series of high quality laser crystals will be obtained to meet the needs of eye-safe CW and pulsed laser performances. By this research, the basic roles of the solid solution series laser crystals such as the relationship between the basic properties (thermal conductivity, spectra, etc.) and laser characters (efficiency, power and sensitized ions etc.) will be explored. A prototype of eye safe lasers will be manufactured.