Investigation of LiXO3 (X=Nb, Ta) crystals doped with luminescent ions: Recent results

Processes of transfer of excitation from levels populated by diode laser pumping to upper laser levels in LiTaO3:Tm and LiTaO3:Ho are considered. Stimulated emission cross section for the 3F4-4H6 transition of Tm and for the 5I7-5I8 transition of Ho in lithium tantalate have been evaluated. Preliminary data concerning the contribution of radiative transitions and multiphonon relaxation to the decay of excited states of Er, Tm and Ho in LiNbO3 and LiTaO3 are compared.