Alexandrite microchip lasers.
Alexandrite microchip lasers.
复制标题
紫翠玉微芯片激光器。
DOI：
10.1364/oe.27.016975
复制
发表时间：
2019
期刊：
影响因子：
3.8
通讯作者：
H. Jelínková
中科院分区：
文献类型：
--
作者：
M. Fibrich;J. Šulc;H. Jelínková
报道了一种连续波长为680.4 nm和749.5 nm的紫翠宝石(Cr3+：BeAl2O4)微片激光器。微片谐振器是通过在翠绿宝石晶体表面直接沉积介质镜来实现的。采用InGaN激光二极管作为泵浦源，在∼445 nm波长下提供高达3.5W的输出功率。从微芯片激光系统中分别获得了680.4 nm和749.5 nm波长的210 mW和570 mW以上的激光辐射。与吸收泵浦功率相关的斜率效率分别为15%和39%。
We report on a continuous-wave alexandrite (Cr3+:BeAl2O4) microchip lasers operating at 680.4 nm and 749.5 nm laser wavelengths. Microchip resonators were realized by dielectric mirrors directly deposited on the alexandrite crystal surfaces. InGaN laser diode providing up to 3.5 W of the output power at ∼445 nm wavelength was used as a pump source. More than 210 mW and 570 mW of the laser radiation have been extracted from the microchip laser systems at 680.4 nm and 749.5 nm wavelengths, respectively. The corresponding slope efficiencies related to absorbed pump power were 15 % and 39 %.