Influence of acoustic waves on TEA CO2 laser performance

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dc.contributor.authorVon Bergmann H.
dc.contributor.authorForbes A.
dc.contributor.authorRoberts T.
dc.contributor.authorBotha L.
dc.date.accessioned2011-05-15T16:00:22Z
dc.date.available2011-05-15T16:00:22Z
dc.date.issued2007
dc.description.abstractIn 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.
dc.description.versionConference Paper
dc.identifier.citationProceedings of SPIE - The International Society for Optical Engineering
dc.identifier.citation6346 PART 1
dc.identifier.issn0277786X
dc.identifier.other10.1117/12.737142
dc.identifier.urihttp://hdl.handle.net/10019.1/11665
dc.subjectAcoustic waves
dc.subjectBeam quality
dc.subjectIonization
dc.subjectLaser beams
dc.subjectOptical gain
dc.subjectEnergy variation
dc.subjectLaser gain
dc.subjectLaser performance
dc.subjectRepetition rate
dc.subjectCarbon dioxide lasers
dc.titleInfluence of acoustic waves on TEA CO2 laser performance
dc.typeConference Paper
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