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线激光束均匀化整形方法研究
引用本文:黄坤,何平安,范若,刘军伟,刘欣慰,徐明.线激光束均匀化整形方法研究[J].应用光学,2009,30(3):523-526.
作者姓名:黄坤  何平安  范若  刘军伟  刘欣慰  徐明
作者单位:1. 中国科学技术大学,物理系,安徽,合肥,230026
2. 武汉大学,光电信息工程系,湖北,武汉,430079
摘    要:为解决核物理工程、表面热处理、激光加工、激光通信中传输激光束的均匀性问题,提出采用三角楔柱透镜改善线激光均匀性的新方法,并在ZEMAX开发环境下建立了整形光路系统的理论模型。利用所建立的模型,分析了整形柱透镜在不同半径、斜面夹角、透镜介质折射率等参数下光束的均匀性。研究表明:在远场条件下,通过改变整形柱透镜的参数,能够得到能量分布均匀的线激光。在实际应用中,可以采用1个半圆柱和2个相同三角楔胶合成型的简单工艺。进一步模拟发现,两种整形系统所得到的均匀度和线宽一致。

关 键 词:高斯光束  光束整形  光线追迹  线激光  ZEMAX软件
收稿时间:2008/11/10

Uniformization shaping method of line laser beam
HUANG Kun,HE Pin-gan,FAN Ruo,LIU Jun-wei,LIU Xin-wei,XU Ming.Uniformization shaping method of line laser beam[J].Journal of Applied Optics,2009,30(3):523-526.
Authors:HUANG Kun  HE Pin-gan  FAN Ruo  LIU Jun-wei  LIU Xin-wei  XU Ming
Institution:1. Department of Physics, University of Science and Technology of China, Anhui 230026, China;
2. Department of Optoelectronic Information Engineering, Wuhan University, Wuhan 430079, China
Abstract:A new method using a cylindrical lens with two wedges to improve the uniformity of the line laser is provided to solve the problem of laser beam uniformly transmitting in the laser communication. The theory model of the optical system for the beam shaping was built with ZEMAX. The uniformity of the beam through the cylindrical lens is analyzed with the model at the different parameters (radius, angle between two slopes and the refractive index of lens medium). The result shows that the line laser with the uniform intensity distribution can be obtained by changing the cylindrical lens parameters under the condition of far field.
Keywords:Gaussian beam  beam shaping  ray tracing  line laser  ZEMAX software
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