Investigation of CO2 laser beam modulation by rotating polygon

被引：10
|
作者：
Luo, Xi [1 ]
Wang, Ying [1 ]
Chen, Peifeng [1 ]
Zhou, Le [1 ]
机构：
[1] Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Coll Optoelect Sci & Engn, Wuhan 430074, Peoples R China
来源：
OPTICS AND LASERS IN ENGINEERING | 2011年 / 49卷 / 01期
关键词：
Laser beam modulation; Rotating polygon; Focusing characteristics; Generalized ABCD law; Laser texturing; MIRROR;
D O I：
10.1016/j.optlaseng.2010.08.006
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A beam-modulating system based on the rotating polygon has been proposed in a previous experimental work [14]. The aim was to improve the quality and efficiency of CO2 laser surface texturing. Based on the generalized ABCD law, the focusing characteristics of a real beam through the modulating system are investigated in this paper. By introducing a precise defocusing, the velocity synchronization between the focal spot and the workpiece can be realized. Micro-dimples of nearly circular shape can be achieved on the surface. Surface texturing of mill roll has been performed. The experimental and theoretical results are in good agreement. (C) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码：132 / 136
页数：5
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