Ablation of concrete surfaces using a compact high power CO2 waveguide array laser with beam shaping

Francisco J. Villarreal, R. Abram, Howard J. Baker, Denis R. Hall, D. R. Jones, E. P. Johnston, G. J. Shannon, William M. Steen, Julian T. Spencer

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


The composite beam from a 64-element carbon dioxide array laser, which produces an average power output of 2 kW, has been used in a series of surface processing experiments. In one set of experiments related to nuclear power station decommissioning, the array beam has been used to process the surface of a range of different density concrete materials. Scabbling trials have achieved concrete removal rates of ~1200 cm3hr-1kW-1 and average scabble depths of ~5 mm with incident power densities as low as 80 Wcm-2. ©2003 Copyright SPIE - The International Society for Optical Engineering.

Original languageEnglish
Pages (from-to)821-828
Number of pages8
JournalProceedings of SPIE - the International Society for Optical Engineering
Publication statusPublished - 1998
EventHigh-Power Laser Ablation - Santa Fe, NM, United States
Duration: 27 Apr 199827 Apr 1998


  • Ablation
  • Array lasers
  • Carbon dioxide lasers
  • Concrete
  • Scabbling


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