Аннотация:Thulium-doped magnesium molybdate crystal (Tm:MgMoO4) was grown by the Czochralski method. It belongs to the monoclinic class (sp. gr. C2/m). Its spectroscopic properties are studied. Tm:MgMoO4 exhibits broad and smooth emission spectrum extending beyond 2 μm (3F4 → 3H6 transition) and a long lifetime of the 3F4 state (1.90 ms) making it promising for broadly tunable and mode-locked lasers.