激光技术2016，Vol.40Issue(4)：545-549,5.DOI:10.7510/jgjs.issn.1001-3806.2016.04.019
2 kW射频板条CO2激光器射频频率漂移特性研究
Research of effect of frequency fluctuation on the performance of a 2kW RF-excited slab CO2 laser
王东升 1陈晓姣 1王振 1郭海平 1秦应雄1
作者信息
- 1. 华中科技大学 光学与电子信息学院,武汉430074
- 折叠
摘要
Abstract
In order to investigate influence of electronic tube radio frequency(RF) power frequency fluctuation of 2kW RF slab CO2 laser on output beam, the influences of RF frequency on laser input and output characteristics were analyzed through equivalent circuit analysis and experiment measurement. When frequency offset was 2MHz, real component of load impedance had the change of 0. 01%. RF frequency drift had little effect on equivalent circuit parameters of discharge portion. When using the radio frequency of 79. 4MHz, 80. 0MHz, 80. 7MHz, 81. 4MHz, 82. 0MHz and 82. 7MHz, with corresponding output power of 81. 4MHz design frequency set as benchmark, with the duty cycle set as 80%, laser power decreased about 150W with frequency drift of 1MHz. The computational results were consistent with the experimental results well. The results show thatthe impedance matching problem caused by frequency fluctuation is a major factor that deteriorates the RF slab laser performance. This problem can be solved by improving the matching network.关键词
激光技术/射频板条CO2激光器/阻抗匹配/频率波动/射频放电Key words
laser technique/RF-excited slab CO2 laser/impedance matching/frequency drift/RF discharge分类
信息技术与安全科学引用本文复制引用
王东升,陈晓姣,王振,郭海平,秦应雄..2 kW射频板条CO2激光器射频频率漂移特性研究[J].激光技术,2016,40(4):545-549,5.
