Beam collimation of the laser diode with a heteroaxial double half-elliptical cylinder lens  

作　　者：高全华 曾晓东 

机构地区：[1]School of Science,Chang'an University [2]School of Technical Physics,Xidian University

出　　处：《Optoelectronics Letters》2010年第6期435-438,共4页光电子快报（英文版）

摘　　要：A new collimation system,the heteroaxial double half-elliptical cylinder lens(HDHECL),is proposed based on the raytracing method,and the collimation performance of the HDHECL is discussed and compared with conventional lenses.The simulation results suggest that the refractive index of the HDHECL can be larger than 2,the collimation effect is improved with the increase of the refractive index in a certain range,and the divergence angle in the fast-axis direction can be compressed to less than 0.01 mrad theoretically.These results are of significance in theory and practice.A new collimation system,the heteroaxial double half-elliptical cylinder lens（HDHECL）,is proposed based on the raytracing method,and the collimation performance of the HDHECL is discussed and compared with conventional lenses.The simulation results suggest that the refractive index of the HDHECL can be larger than 2,the collimation effect is improved with the increase of the refractive index in a certain range,and the divergence angle in the fast-axis direction can be compressed to less than 0.01 mrad theoretically.These results are of significance in theory and practice.

关 键 词：准直光束 圆柱透镜 激光二极管 瞄准系统 光线追踪 仿真结果 折射率 发散角 

分 类 号：TN31[电子电信—物理电子学]