大功率半导体激光器二元光学消像散准直器件设计  

Design of a binary optical element for collimation of high power laser diode beams with astigmatism

作　　者：谢梦[1] 曾晓东[1] 安毓英[1] 

机构地区：[1]西安电子科技大学技术物理学院,陕西西安710071

出　　处：《红外与激光工程》2007年第1期102-105,共4页Infrared and Laser Engineering

基　　金：国家自然科学基金资助项目(60277004)

摘　　要：半导体激光器发出的光束具有较大的发散角且存在像散,严重影响了其应用。基于对半导体激光器远场分布的准确了解,提出了一种二元光学消像散准直器件的设计方法,并给出了详细的设计原理及过程。依据已知光束等相位面的具体分布(光束的像散因子也包含在其中),可得到二元光学器件的相位分布,使光束经过此二元光学器件后,等相位面成为平面,达到了准直、消像散的目的。此方法简单、直观,具有很高的准确性和可行性。所得二元光学器件表面具有多位相的浮雕结构。The beam quality of laser diode is very poor, which affects its use heavily. Based on accurate far-field model of highpower laser diode, a design method of binary optical element for laser diode beams, which can correct the astigmatism of the laser beam, has been developed, and the principle and process have been given in detail. The method is simple and practical. The relief surface of the element is of multiphase structure.

关 键 词：半导体激光器 二元光学 准直 像散 

分 类 号：TN248.4[电子电信—物理电子学]