Evaluation of pulsed diode end-pumped Ytterbium doped sesquioxides: comparison of Sc2O3, Y2O3 and Lu2O3

Abstract

This paper deals with the thermal and optical properties of Ytterbium doped cubic sesquioxide crystals. We first compare the thermal properties of three doped crystals. Using a theoretical model, we investigate and compare the performances achievable with these crystals when they are pumped on the zero-line and on the second sub level of the excited state. Using numerical simulations, we then show that the zero-line is not well suited for pulsed diode pumping.