Predicting gas decomposition in an industrialized pulsed CO2 laser

Andrew Forbes; Lourens R. Botha

doi:10.1117/12.611067

23 March 2005 Predicting gas decomposition in an industrialized pulsed CO₂ laser

Andrew Forbes, Lourens R. Botha

Proceedings Volume 5777, XV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers; (2005) https://doi.org/10.1117/12.611067
Event: XV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, 2004, Prague, Czech Republic

Abstract

A model is developed for the breakdown and regeneration of component gases in an industrialised TEA CO₂ laser, both with and without internal catalysts, and is found to be in excellent agreement with experimental data. The laser was found to be stable at O₂ levels in excess of 2%, whereas previously reported values suggest stable operation at values of less than 1%. This is thought to be related to the unusually high starting CO₂ concentration of the gas mix, and the short time pulse of the laser ouput. Long term catalytic behaviour however shows a decay in the catalyst activity, corresponding to higher energy variation and lower average power.

Citation Download Citation

Andrew Forbes and Lourens R. Botha "Predicting gas decomposition in an industrialized pulsed CO₂ laser", Proc. SPIE 5777, XV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, (23 March 2005); https://doi.org/10.1117/12.611067

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