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Line-tunable Er:GGAG laser

Richard Švejkar, Jan Šulc, Michal Němec, Pavel Boháček, Helena Jelínková, Bohumil Trunda, Lubomír Havlák, Martin Nikl, and Karel Jurek

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Abstract

In this Letter, for the first time, to the best of our knowledge, a pulse and CW laser based on an Er-doped Gd3Ga2.7Al2.3O12 (Er:GGAG) active medium emitting laser radiation at 2.8 μm are presented. With the longitudinal diode pumping, the maximal output energy of 4.9 mJ and slope efficiency of 13.5% in the pulse regime were reached. Using the birefringent MgF2 plate, the line tunability of Er:GGAG at several spectral bands of 2800–2822 nm, 2829–2891 nm, and 2917–2942 nm were obtained.

© 2018 Optical Society of America

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