Optical and laser performance of Yb:YSAG ceramics
Zmykhov V. Yu.1, Guriev D.A.1, Tsvetkov V. S. 1, Dobretsova E. A. 1, Pyrkov Yu. N. 1, Kuznetsov S. V. 1, Nikova M. S. 2, Tarala V. A.2, Vakalov D. S. 2, Kravtsov A. A. 2, Tsvetkov V. B. 1
1Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow, Russia
2Scientific and Laboratory Complex Clean Room, North Caucasus Federal University, Stavropol, Russia
Email: vadimzhmykhov56@gmail.com, Vadimzhmykhov56@gmail.com

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8.3(3) at.% Yb : YSAG ceramics (Y2.55Yb0.25Sc1.00Al4.2O12) have been prepared via solid solution powder sintering. The optical and lasing characteristics have been successfully studied. Lasing was obtained on the basis of Yb:YSAG ceramics and the characteristics of laser radiation were studied at different transmittances of the output mirror of the resonator. The maximum lasing power was 1.8 W at 3.6 W of absorbed pumping in the quasi-cw generation mode. The maximum differential efficiency was 57% for a mirror with a transmittance of 14.5%. Keywords: Optical ceramics, ytterbium, luminescence, laser generation, radiative lifetimes, rare-earth elements, lasing output power.
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