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.
|Title of host publication||Proceedings of the 1994 Conference on Lasers and Electro-Optics Europe|
|Publication status||Published - 1994|
|Event||1994 Conference on Lasers and Electro-Optics Europe - Amsterdam, Netherlands|
Duration: 28 Aug 1994 → 2 Sept 1994
|Conference||1994 Conference on Lasers and Electro-Optics Europe|
|Period||28/08/94 → 2/09/94|