The research on discharge tube structure of fast-axial-flow CO_2lasers

摘要

In order to make clear the influence of discharge tube structure on the flow field and discharge processes of a fast-axial-flow CO2 laser, three-dimensional modeling have been made on two different structures of tubes under the sameboundary conditions. The computational results show the differences of flow field in two different structures of tubeswhich lead to the different discharging conditions. There is also a good agreement between the computational results andthe experimental observations. The results prove that the two tubes have advantages respectively, and it can explain theinstability of discharge which happened in experiments.