Abstract

Passive Q switching of Er:glass lasers has been demonstrated with Cr2+:ZnSe and Co2+:ZnSe saturable absorbers. A pulse duration of 50 ns and an output pulse energy of 5 mJ were obtained with both Co:ZnSe and Cr:ZnSe passive shutters. A Q-switched conversion efficiency of as much as 26% was obtained for Cr:ZnSe. Theoretical modeling exhibits satisfactory agreement with experimental data.

© 1999 Optical Society of America

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