We report the operation of a passively Q-switched diode end pumped Nd3+:KGW laser, which was obtained by using a Cr4+:YAG or Cr4 GGG saturable absorbers in the multikHz frequency domain. The free-running (with maximum slope efficiency of 46 %), and the passively Q-switched characteristics of Nd:KGW were investigated and the use of Nd:KGW as microlasers will be discussed.

© 2001 Optical Society of America

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