Von Bergmann, HForbes, ARoberts, TBotha, L2007-07-182007-07-182007Von Bergmann, H, et al. 2007. Influence of acoustic waves on TEA CO2 laser performance. Proceedings of SPIE, vol. 63460277-786Xhttp://hdl.handle.net/10204/1008http://spiedigitallibrary.aip.org/In this paper the author’s present results on the influence of acoustic waves on the output laser beam from high repetition rate TEA CO2 lasers. The authors 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. The authors 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.enAcoustic wavesTEA CO2 lasersBeam qualityEnergy variationLaser gainInfluence of acoustic waves on TEA CO2 laser performanceConference PresentationVon Bergmann, H., Forbes, A., Roberts, T., & Botha, L. (2007). Influence of acoustic waves on TEA CO2 laser performance. The International Society for Optical Engineering. http://hdl.handle.net/10204/1008Von Bergmann, H, A Forbes, T Roberts, and L Botha. "Influence of acoustic waves on TEA CO2 laser performance." (2007): http://hdl.handle.net/10204/1008Von Bergmann H, Forbes A, Roberts T, Botha L, Influence of acoustic waves on TEA CO2 laser performance; The International Society for Optical Engineering; 2007. http://hdl.handle.net/10204/1008 .TY - Conference Presentation AU - Von Bergmann, H AU - Forbes, A AU - Roberts, T AU - Botha, L AB - In this paper the author’s present results on the influence of acoustic waves on the output laser beam from high repetition rate TEA CO2 lasers. The authors 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. The authors 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. DA - 2007 DB - ResearchSpace DP - CSIR KW - Acoustic waves KW - TEA CO2 lasers KW - Beam quality KW - Energy variation KW - Laser gain LK - https://researchspace.csir.co.za PY - 2007 SM - 0277-786X T1 - Influence of acoustic waves on TEA CO2 laser performance TI - Influence of acoustic waves on TEA CO2 laser performance UR - http://hdl.handle.net/10204/1008 ER -