二极管端面抽运的固体激光放大器自身热透镜焦距测量  

Determination of thermal focal length of diode laser end-pumped solid-state amplifier

作　　者：贺万骏[1] 姚宝权[1] 王月珠[1] 鞠有伦[1] 

机构地区：[1]哈尔滨工业大学可调谐激光国家重点实验室,哈尔滨150001

出　　处：《物理学报》2007年第6期3240-3245,共6页Acta Physica Sinica

摘　　要：通过分析激光经过热透镜后光束半径的变化,提出了利用放大器测量热透镜焦距的方法.根据激光束传输与变换理论,得到了热透镜焦距的表达式,并分析了其前提条件和近似偏差.最后,基于上述理论分析,测量了激光二极管端面抽运Tm,Ho∶GdVO4放大器的热透镜焦距.Thermal focal length of amplifier is investigated by analyzing the variation of beam radius after thermal lens. According to the theory of laser beam propagation, the expressions of the thermal focal length are obtained. Also, the preconditions and the deviations of the expressions are analyzed. Based on the theoretical analysis, the thermal focal length of the laser diode （LD） end-pumped Tin, Ho： CdVO4 amplifier is measured.

关 键 词：热透镜焦距 固体激光 激光束传输与变换 

分 类 号：TN722[电子电信—电路与系统]