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Proceedings Paper

Invited Paper High Frequency Excitation Of CO2 Lasers
Author(s): R. Wester; G. Herziger; H. Schtilke
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Paper Abstract

High frequency excitation is increasingly substituting d.c. discharge excitation of CO2 lasers mainly because of the capability of higher power density and the superior modulation properties. There exist two different modes of high frequency discharges depending on the processes taking place in the boundary layers. The conditions for the existence of both modes will be determined by means of the stationary current density voltage characteristic. Thermal instabilities in high frequency discharges proof to depend on the excitation frequency. The stability limits will be evaluated by a linear stability analysis of a discharge model including gaseous electronics, gasdynamics and Maxwell equations.

Paper Details

Date Published: 22 September 1987
PDF: 9 pages
Proc. SPIE 0801, High Power Lasers: Sources, Laser-Material Interactions, High Excitations, and Fast Dynamics, (22 September 1987); doi: 10.1117/12.941214
Show Author Affiliations
R. Wester, Lehrstuhl filr Lasertechnik der Rheinisch-Westfalischen Technischen Hochschule Aachen, (Germany)
G. Herziger, Institut far Lasertechnik (Germany)
H. Schtilke, Lehrstuhl fur Lasertechnik der Rheinisch-Westfalischen Technischen Hochschule Aachen (Germany)


Published in SPIE Proceedings Vol. 0801:
High Power Lasers: Sources, Laser-Material Interactions, High Excitations, and Fast Dynamics
Ernst-Wolfgang Kreutz; A. Quenzer; Dieter Schuoecker, Editor(s)

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