Open AccessHigh-Efficiency Mini-Slab Laser Based on Tm-doped Double Tungstate Crystal
Author(s) -
S. M. Vatnik,
I A Vedin,
M D Kolker,
A. A. Pavlyuk
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2067/1/012009
Subject(s) - materials science , lasing threshold , tungstate , slope efficiency , slab , laser , duty cycle , optics , doping , optoelectronics , diode , bar (unit) , crystal (programming language) , power (physics) , fiber laser , physics , quantum mechanics , computer science , metallurgy , programming language , geophysics , meteorology
We report on highly-efficient room-temperature lasing in 5at.%Tm:KLu(WO 4 ) 2 mini-slabs side-pumped by a 35W diode bar. QCW (duty cycle ∼ 14%) output power of 1.47 W at 1908 nm has been demonstrated with optical and slope efficiencies being of 33 and 43% respectively. In our experiments, we used samples of active elements produced in the slabs form with Brewster’s angle cut faces and original laser cavity design.