校正半导体激光束像散的波像差方法  

The method of wavefront aberration for correcting astigmatism in semiconductor laser beams

作　　者：郭福源[1] 

机构地区：[1]福建师范大学激光研究所

出　　处：《激光技术》1998年第3期172-176,共5页Laser Technology

基　　金：福建省自然科学基金

摘　　要：利用波像差方法研究半导体激光束的传输变换特性，推导出用于校正半导体激光束像散的柱面透镜的正确设计公式。In this paper,the method of wavefront aberration is employed to study the transformation properties of semiconductor laser beams.Using the optical system composed of a cylinder lens and a collimation lens is a useful method to correct the astigmatism of the semiconductor laser beam.This paper presents the exact design formulas of cylinder lens,which respectively correspond to two arrangements of the cylinder lens placed in front of or behind the object lens.And this paper points out if the waist position of semiconductor laser beam meets the condition of x2os>-fLf′L,the cylinder lens should be placed in front of the object lens,reversely the cylinder lens should be placed behind the object lens and simultaneously the position of the cylinder lens should meet the condition of x′C<-fLf′L.Finally,the optimun position of the cylinder lens in the correction astigmatism system for the semiconductor laser beam is derived.

关 键 词：半导体激光束 校正像散 波像差 半导体激光器 

分 类 号：TN248.4[电子电信—物理电子学]