The experimental results which were obtained in GPI of RAS by DR.D.A.Mashkovsky - dma@kapella.gpi.ru are represented. These results were obtained with support of analysis, which was made with LID-MCL program set application.

      For all combinations of active elements and passive Q-switches is possible to obtain the generation with sub-nanosecond pulsewidth. The following combinations of elements were investigated: active medium YVO₄:Nd³⁺, YAG:Nd³⁺ и LSB:Nd³⁺, and passive Q-switches YAG:Cr⁴⁺, YAG:V⁴⁺ and GSGG:Cr⁴⁺. Large possibilities of YVO₄:Nd³⁺ are based on large cross-section of laser transient. This fact give you possibility to obtain the large velosity of processes, and as result to obtain short pulses.

      Below results for YVO₄:Nd³⁺ laser is represented.