摘要
为优化高斯型光束端面泵浦固体激光器中模式交叠比率,提高激光器输出功率,推导了高斯型泵浦光束对应的热致衍射损耗的解析表达式,分析了端面泵浦的掺钕激光器中此热致衍射损耗和模式交叠比率以及泵浦功率之间的关系.研究结果表明:在有热致衍射损耗条件下,优化的交叠比率小于0.65,忽略热致衍射损耗,优化值变大.
The analytical model of thermally induced diffraction losses of Ganssian pump beam is derived as functions of mode-to-pump ratio and pump power in diode-end-pump Nd-doped laser. The mode-to-pump ratio is optimized. The results show that the optimum mode-to-pump ratio is less than 0.65 that is less than that without thermally induced diffraction losses. This model is applied into diode -end-pump Nd ： GdVO4 laser,which is in agreement with the experimental results.
出处
《西安工业大学学报》
CAS
2014年第10期784-788,共5页
Journal of Xi’an Technological University
基金
大学生创新创业训练计划项目资助课题(201210702051
1368)
关键词
激光器
热致衍射损耗
高斯型泵浦光束
模式交叠比率
laser
thermally induced diffraction losses
Gaussian pump beam
mode-to-pump ratio
