红外激光泵浦掺稀土固体材料直接输出蓝绿激光

Infrared Laser Pumped Blue and Green Laser Emission from a Single Rare Earth-Doped Solid State Material

介绍利用红外或红色激光泵浦掺稀土固体材料直接输出蓝绿激光的途径和研究进展;较为详细地介绍了红外激光泵浦掺稀土非线性激光晶体通过自变频过程,以及红外激光泵浦掺稀土固体块状、光纤和微珠材料通过频率上转换过程实现蓝绿激光输出的研究结果,并与其它输出蓝绿波段激光的器件和方法进行比较,着重对比分析了YAl3(BO3)4,GdAl3(BO3)4,Ca4YO(BO3)3和Ca4GdO(BO3)3等典型的非线性激光基质晶体以及氟化物光纤等典型的上转换激光介质材料。对该领域目前面临的主要问题和发展方向进行了探讨。

The possible ways and progress of infrared or red laser pumped blue and green laser emission from a single solid state material doped by rare earth ions are presented. The blue and green lasers arose from infrared laser pumped rare earthdoped nonlinear laser crystals by means of selffrequencyconversion, and infrared laser pumped rare earthdoped bulk, fiber and microsphere materials by means of frequency upconversion are introduced. Other kinds of device and method are also compared. The typical nonlinear laser crystals YAl3(BO3)4, GdAl3(BO3)4, YCa4O(BO3)3, GdCa4O(BO3)3, and the typical upconversion fluoride fibers are compared and analyzed. The major problems remain to be solved and the developing trends in the area are also discussed.