输入光束光斑半径变化对BOE整形环的影响  

Influence of input beam radii on ring-shaped intensity produced by BOE

作　　者：李琦[1] 王骐[1] 高惠德[1] 

机构地区：[1]哈尔滨工业大学光电子技术研究所可调谐激光技术国家级重点实验室,哈尔滨150001

出　　处：《激光技术》2002年第1期35-37,40,共4页Laser Technology

摘　　要：在已设计的 16阶用于将He Ne基模高斯光束转换为厚环形光束二元光学元件基础上 ,模拟计算了输入光束光斑半径变化对所设计的二元光学元件整形环效果的影响 ,模拟结果显示 ,当光斑半径偏离设计值在± 5 0 μm范围内 ,环上均匀性的均方误差不超出设计值的 5 %。同时 ,给出了输入光斑半径为 1.74 5mm时的实验结果及6 6Based on the 16 phase level binary optical elecment(BOE) designed to convert a given single mode He Ne laser beam into a ring shaped intensity distribution,its shaping effect is numerically simulated for different input beam radii.The simulation results show that the relative mean square deviation of the shaped amplitude is less than 5% when the difference between the input beam radius and the designed one is within the range of ±50μm.Furthermore,experiment results have been presented for the case that the input beam radius is 1.745mm and the wavelength for the semiconductor is 660nm.

关 键 词：厚环形 光束整形 二元光学元件 整形环 高斯光束 输入光束光斑半径 

分 类 号：TH74[机械工程—光学工程]