High-speed Laser Micromachining with Copper Bromide Laser
  The application of the copper bromide (CuBr) laser as an attractive tool in the micro-machining of different materials has been demonstrated. High-quality drilling by trepanning and precision cutting was established on several materials with a negligible heat-affected zone (HAZ). That good performance was a result of the combination of high power visible radiation, short pulses, and close to the diffraction-limited laser beam quality with high-speed galvo scanner beam steering. 
Ivaylo I. Balchev, Nikolai I. Minkovski, Ivan K. Kostadinov, Nikola V.   Sabotinov