Yb:YCOB黄光激光自倍频晶体  

Yb:YCOB Self-Frequency-Doubled Yellow Laser Crystal and Device

作　　者：路大治 房倩楠 于浩海[1] 张怀金[1] 王继扬[1] LU Dazhi;FANG Qian nan;YU Haohai;ZHANG Huaijin;WANG Jiyang(State Key Laboratory of Crystal Materials,Shandong University,Jinan 250100,China)

机构地区：[1]山东大学晶体材料国家重点实验室,济南250100

出　　处：《硅酸盐学报》2021年第2期246-249,共4页Journal of The Chinese Ceramic Society

基　　金：国家自然科学基金重点项目(51632004)。

摘　　要：采用提拉法生长了不同掺杂浓度(5%~30%,摩尔分数,下同)的Yb:YCa_(4)O(BO_(3))_(3)(Yb:YCOB)激光自倍频晶体,研究了系列晶体的结构与掺杂浓度之间的关系,加工了最大有效非线性系数方向的自倍频晶体并实现微片结构器件设计。利用强电—声子耦合作用,在掺杂浓度为30%、晶体长度为4 mm的Yb:YCOB晶体中获得了最高功率为1.71 W的黄光激光输出,转换效率为11.97%,并通过设计镀膜条件将波长稳定在570 nm。结果表明,Yb:YCOB自倍频晶体可填补可实用黄光激光光源空白。Yb:YCa_(4) O(BO_(3))_(3)(Yb:YCOB)self-frequency doubling(SFD)crystals with different doping concentrations(5%–30%,mole fraction,the same below)were grown by the Czochralski method,and the relationship between the structure and doping concentration of the as-grown crystals was analyzed.The crystals were cut along the direction with a maximum effective nonlinear coefficient,and the microchip structure design was realized.The yellow laser output with a maximum power of 1.71 W can be obtained in Yb:YCOB crystal with a doping concentration of 30%and a crystal length of 4 mm with respect to the electric-phonon coupling effect.The conversion efficiency is 11.97%and the output wavelength is stabilized at 570 nm based on the proper coating parameter design.The results show that Yb:YCOB SFD crystals can realize the practical yellow laser.

关 键 词：复合功能晶体 激光自倍频 黄光激光 

分 类 号：O73[理学—晶体学]