Invited Paper High Frequency Excitation Of CO2 Lasers

R. Wester; G. Herziger; H. Schtilke

doi:10.1117/12.941214

22 September 1987 Invited Paper High Frequency Excitation Of CO2 Lasers

R. Wester, G. Herziger, H. Schtilke

Proceedings Volume 0801, High Power Lasers: Sources, Laser-Material Interactions, High Excitations, and Fast Dynamics; (1987) https://doi.org/10.1117/12.941214
Event: Fourth International Symposium on Optical and Optoelectronic Applied Sciences and Engineering, 1987, The Hague, Netherlands

Abstract

High frequency excitation is increasingly substituting d.c. discharge excitation of CO₂lasers 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.

Citation Download Citation

R. Wester, G. Herziger, and H. Schtilke "Invited Paper High Frequency Excitation Of CO2 Lasers", Proc. SPIE 0801, High Power Lasers: Sources, Laser-Material Interactions, High Excitations, and Fast Dynamics, (22 September 1987); https://doi.org/10.1117/12.941214

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