LDA耦合系统透镜导管的理论与实验研究  

Theoritical and experimental research on lens duct for LDA coupling

作　　者：刘晓娟[1] 傅汝廉[1] 秦华[1] 史新刚[1] 卓然然[1] 郜洪云[1] 

机构地区：[1]南开大学现代光学研究所,天津300071

出　　处：《光学精密工程》2006年第2期167-172,共6页Optics and Precision Engineering

基　　金：国家自然科学基金(No.60577015)

摘　　要：用光线追迹的方法,理论推导了透镜导管各参数优化的一般公式,给出了优化参数;在此基础上,模拟了导管内光线的传输,统计了透镜导管出射光束的强度分布,讨论了各参数对耦合效果的影响。依据理论优化的结果,设计加工了透镜导管并进行了耦合实验,测量了输出光束的强度分布,给出了光斑图像。实验测得耦合效率高于91%,输出光束强度分布平滑均匀,光斑质量良好,与理论模拟吻合并优于以往的研究结果。Based on the numerical analysis of ray tracing, the general expressions of the parameters in optimization design of the lens duct were theoretically deduced. Using the theoretical model, the light transmission trace in the duct was simulated, and the light intensity distribution of the output beam was calculated. The influence of the parameter＇s value on the coupling effect was also analyzed. Based on the optimum designing, a lens duct was fabricated and applied to a laser system, and the coupling experiment was implemented. The experimental results show that a smooth and symmetric beam with a good quality can be obtained at the output duct end. The coupling efficiency of the lens duct is above 91%. The results of the experiment agree well with the theoretical analysis, and are better than the results reported previously.

关 键 词：激光技术 透镜导管 二极管阵列 耦合系统 

分 类 号：TN248.4[电子电信—物理电子学]