热透镜效应对激光光束聚焦的影响  

The influence of thermal-lens effect on laser beam focusing

作　　者：李斌[1] 李永大[1] 陈金强[1] 林楠[1] 李达[1] 

机构地区：[1]长春理工大学理学院,吉林长春130022

出　　处：《光学仪器》2007年第6期44-48,共5页Optical Instruments

摘　　要：利用高斯光束传播的ABCD定律,分析了热透镜效应对高斯光束聚焦的影响,对两种腔型做了数值计算和分析,并计算了不同焦距透镜对高斯光束聚焦后的腰斑半径和腰斑位置。通过计算分析表明对于同一高斯光束用短焦距透镜聚焦后得到的光斑比用长焦距透镜聚焦得到的光斑更稳定。In this paper ,the influence of thermal-lens effect on the focusing of Gaussian-beam was analyzed using ABCD law. Numerical analysis was performed for two cavity configurations. Radius and positions of focused Gaussian beams from lenses with different focal length were given . The analysis show that for the same Gaussian beam the focused beam from a lens of short focal length is more stable than that from a long focal length.

关 键 词：热透镜效应 ABCD定律 高斯光束 聚焦 

分 类 号：TN24[电子电信—物理电子学]