P. A. Ryabochkina, S. A. Artemov, N. G. Zakharov, E. V. Saltykov, K. V. Vorontsov, A. N. Chabushkin, E. E. Lomonova, “Lasing characteristics of ZrO2 – Y2O3 – Ho2O3 crystals pumped by a Tm : LiYF4 laser”, Kvantovaya Elektronika, 2020, Volume 50, Number 8,Pages 727

Lasers, active media

Lasing characteristics of ZrO₂ – Y₂O₃ – Ho₂O₃ crystals pumped by a Tm : LiYF₄ laser

P. A. Ryabochkina^a, S. A. Artemov^a, N. G. Zakharov^b, E. V. Saltykov^b, K. V. Vorontsov^b, A. N. Chabushkin^c, E. E. Lomonova^d

^a Ogarev Mordovia State University, Saransk
^b Federal State Unitary Enterprise "Russian Federal Nuclear Center — All-Russian Research Institute of Experimental Physics", Sarov, Nizhny Novgorod region
^c International Center for Quantum Optics and Quantum Technologies (the Russian Quantum Center), Moscow, Skolkovo
^d Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow

Abstract: Two-micron lasing is obtained on the ⁵I₇ → ⁵I₈ transition of Ho³⁺ ions in ZrO₂ – Y₂O₃ – Ho₂O₃ crystals upon resonance pumping into the ⁵I₇ level of these ions by a pulsed laser based on a Tm : LiYF₄ crystal. The efficiency of conversion of pump radiation incident on the crystal to laser radiation and the slope lasing efficiency at a pulse duration of 8 ms and a pulse repetition rate of 10 Hz were 25% and 28%, respectively.

Keywords: thulium laser, two-micron spectral region, ZrO₂ – Y₂O₃ – Ho₂O₃ crystal.

Received: 14.04.2020