Theoretical comparison of ytterbium doped sesquioxydes under pulsed diode pumping

This paper deals with the thermal and optical properties of ytterbium doped cubic sesquioxide crystal. 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.