V. Yu. Zmykhov, D. A. Guryev, V. S. Tsvetkov, E. A. Dobretsova, Yu. N. Pyrkov, S. V. Kuznetsov, M. S. Nikova, V. A. Tarala, D. S. Vakalov, A. A. Kravtsov, V. B. Tsvetkov, “Optical and laser performance of Yb:YSAG ceramics”, Optics and Spectroscopy, 2023, Volume 131, Issue 5,Pages <nobr>597

The 18th International Theophilus Symposium (IFAC-2022) on Spectroscopy of Crystals Activated by Ions of Rare Earths and Transition Metals (August 22-26, 2022, Moscow)
Optical materials

Optical and laser performance of Yb:YSAG ceramics

V. Yu. Zmykhov^a, D. A. Guryev^a, V. S. Tsvetkov^a, E. A. Dobretsova^a, Yu. N. Pyrkov^a, S. V. Kuznetsov^a, M. S. Nikova^b, V. A. Tarala^b, D. S. Vakalov^b, A. A. Kravtsov^b, V. B. Tsvetkov^a

^a Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia
^b North-Caucasus Federal University

Abstract: 8.3(3) at.% Yb : YSAG ceramics (Y$_{2.55}$Yb$_{0.25}$Sc$_{1.00}$Al$_{4.2}$O$_{12}$) 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.

Received: 02.11.2022
Revised: 21.12.2022
Accepted: 09.04.2023

DOI: 10.21883/OS.2023.05.55710.68-22