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1 2001

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Investigation on passively Q-switched Nd:YAG slab laser pumped by 2D quasi cw diode laser stack

Żendzian W., Jabczyński J.K., Mierczyk Z.

Opto-Electronics Review

2001

Vol. 9, No. 1

75-81

The paper presents results of investigations on generation of Nd:YAG triangle slab laser pumped by 2D diode array. The pump beam shape quality with respect to pump/mode overlap efficiency was investigated both theoretically and experimentally. Two cavity schemes with and without pump forming optics were verified in free running and passively Q-switching modes. Slope efficiency of 45% and output energy of 24 mJ for incident 60 mJ of pump energy were achieved in free running mode. Applying Cr⁴⁺:YAG crystal as passive Q-switch, the output energy of 5 mJ and 0.5 MW peak power were obtained in the optimised resonator.