26 April 2007 Influence of acoustic waves on TEA CO2 laser performance
Author Affiliations +
Proceedings Volume 6346, XVI International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers; 634606 (2007) https://doi.org/10.1117/12.737142
Event: XVI International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, 2006, Gmunden, Austria
Abstract
In this paper we present results on the influence of acoustic waves on the output laser beam from high repetition rate TEA CO2 lasers. We show that acoustic waves generated inside the cavity lead to deterioration in beam quality, decreased output energy, and an increase in pulse to pulse energy variation. We investigate the impact of gas mix on the acoustic behaviour, and present experimental results on laser performance across a range of gas mixtures. Solutions to the acoustic wave problem are presented together with experimental results. The influence of acoustic damping measures on laser gain are demonstrated showing a significant improvement in gain and output power at high repetition rates. The link between the pre-ionisation method employed and the acoustic wave impact on laser performance is discussed.
© (2007) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Hubertus von Bergmann, Hubertus von Bergmann, Andrew Forbes, Andrew Forbes, Ted Roberts, Ted Roberts, Lourens Botha, Lourens Botha, } "Influence of acoustic waves on TEA CO2 laser performance", Proc. SPIE 6346, XVI International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, 634606 (26 April 2007); doi: 10.1117/12.737142; https://doi.org/10.1117/12.737142
PROCEEDINGS
8 PAGES


SHARE
Back to Top