Laser drilling in thin materials with bursts of ns-pulses generated by stimulated Brillouin scattering (SBS)

被引:16
|
作者
Ostermeyer, M
Kappe, P
Menzel, R
Sommer, S
Dausinger, F
机构
[1] Univ Potsdam, Inst Phys, D-14469 Potsdam, Germany
[2] Univ Stuttgart, D-7000 Stuttgart, Germany
来源
关键词
D O I
10.1007/s00339-005-3301-6
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
A passively Q-switched laser with a nonlinear mirror on the basis of stimulated Brillouin scattering (SBS), generates bursts of pulses with a few 10 ns pulse duration and a separation between 20-90 mu s. Percussion drilling and trepanning are performed in different materials with 1 mm thickness. The optimum parameter set of these pulse trains with regard to the burr height and ablation rate is investigated. Differences in the processing results between single pulse and multi pulse structures are discussed. In addition the laser allowed for transiently mode locked operation. Results for mode locked and merely Q-switched operation were compared.
引用
收藏
页码:923 / 927
页数:5
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