端面泵浦准三能级激光器的多物理场仿真研究  

Multiphysics simulation of quasi-three-level end-pumped laser

作　　者：程龙 刘洋 赵鸿 丁小康 王珂 王钢 CHENG Long;LIU Yang;ZHAO Hong;DING Xiao-kang;WANG Ke;WANG Gang(Key Laboratory of Solid State Laser Technology,Beijing 100015,China)

机构地区：[1]固体激光技术重点实验室,北京100015

出　　处：《激光与红外》2020年第1期58-62,共5页Laser & Infrared

摘　　要：针对准三能级板条激光器报道了一种新的多物理场仿真模型。该模型基于泵浦光的吸收特性、热力学以及激光的增益特性,对传统的准三能级计算模型进行补充。模型考虑到激光的产生对增益介质内部物理场的影响,并基于多物理场之间的耦合关系给出一种新的收敛仿真方法。该模型适用于单端、双端泵浦的激光谐振腔与放大器。A new multi-physics simulation model for quasi-three-level slab lasers is reported in the paper.Based on the absorption characteristics of the pump light,the thermodynamics and the gain characteristics of the laser,the model complements the traditional quasi-three-level calculation model.The model considers the influence of laser generation on the internal physical field of the gain medium,and gives a new convergence simulation method based on the coupling relationship between multiple physical fields.This model is suitable for single-ended and double-ended pumped laser resonators and amplifiers.

关 键 词：准三能级 激光器 仿真 多物理场 Yb∶YAG 

分 类 号：TN248.1[电子电信—物理电子学]