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Please use this identifier to cite or link to this item: http://hdl.handle.net/10204/3764

Title: High power infrared super-Gaussian beams: generation, propagation and application
Authors: Du Preez, NC
Forbes, A
Botha, LR
Keywords: Flat-top beams
Resonator modes
Diffractive optics
Paint stripping
Super-Gaussian beams
CO2 laser resonator
Carbon dioxide
Gas flow
Chemical lasers
High-power lasers
Laser beam
Issue Date: Sep-2009
Publisher: Society of Photo-Optical Instrumentation Engineers (SPIE)
Citation: Du Preez, NC, Forbes, A and Botha, LR. 2009. High power infrared super-Gaussian beams: generation, propagation and application. XVII International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers. Lisabon, Portugal, 15 September 2009, pp 1-8
Abstract: In this paper researchers present the design of a CO2 laser resonator that produces as the stable transverse mode a super–Gaussian laser beam. The resonator makes use of an intra–cavity diffractive mirror and a flat output coupler, generating the desired intensity profile at the output coupler with a flat wavefront. Researchers consider the modal build–up in such a resonator and show that such a resonator mode has the ability to extract more energy from the cavity that a standard cavity single mode beam (for exampe Gaussian mode cavity). It demonstrates the design experimentally on a high average power TEA CO2 laser for paint stripping applications.
Description: Copyright: 2009. Society of Photo-Optical Instrumentation Engineers (SPIE). One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.
URI: http://hdl.handle.net/10204/3764
ISSN: 0277-786X
Appears in Collections:Laser physics and technology
General science, engineering & technology

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