Discharge uniformity control in kilowatt class, rf excited, large area electrode CO2 lasers

A. D. Colley, P. P. Vitruk, L. A. Doyle, H. J. Baker, D. R. Hall

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper develops a computer model of very large area RF discharges that use nonuniform transmission line theory, combined with empirically determined data on the power density-dependent plasma impedance. The modeling results are related to the behavior of experimental CO2 lasers with electrode lengths up to 800 mm, and widths of 100 mm, producing 1 kW output. Experimentally, it is found that kilowatt class lasers require additional power distribution networks to achieve uniform discharges. The options for power distribution techniques are presented, and the characteristics of the 1 kW laser that uses a two-stage network is discussed in relation to the modeling results.

Original languageEnglish
Title of host publicationProceedings of the 1994 Conference on Lasers and Electro-Optics Europe
Pages39
Publication statusPublished - 1994
Event1994 Conference on Lasers and Electro-Optics Europe - Amsterdam, Netherlands
Duration: 28 Aug 19942 Sep 1994

Conference

Conference1994 Conference on Lasers and Electro-Optics Europe
CountryNetherlands
CityAmsterdam
Period28/08/942/09/94

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    Colley, A. D., Vitruk, P. P., Doyle, L. A., Baker, H. J., & Hall, D. R. (1994). Discharge uniformity control in kilowatt class, rf excited, large area electrode CO2 lasers. In Proceedings of the 1994 Conference on Lasers and Electro-Optics Europe (pp. 39)