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The lasing properties of Nd∶KGW crystal in free running mode with different transmission of the output couplers are reported. The best results have been obtained with the output coupler of 24% transmission. The slope efficiency is 1.0% and the extrapolated energy threshold is 0.54 J. A comparative experiment of Nd∶KGW and Nd∶YAG laser crystals has been cavried out under identical experimental conditions in both free running and Q switched modes. The much higher efficiency and the lower threshold for Nd∶KGW (Nd: 2.2 at. %) compared to Nd∶YAG (Nd: 1.1 at. %) at 1 064 μm are demonstrated in both operation mode.
The lasing properties of Nd: KGW crystal in free running mode with different transmission of the output couplers are reported. The best results have been obtained with the output coupler of 24% transmission. The slope efficiency is 1.0% and the extrapolated energy threshold is 0.54 J. A comparative experiment of Nd: KGW and Nd: YAG laser crystals has been cavried out under identical experimental conditions in both free running and Q switched modes. The much higher efficiency and the lower threshold for Nd: KGW (Nd: 2.2 at. %) compared to Nd: YAG (Nd: 1.1 at.%) at 1 064 μm are demonstrated in both operation mode.