title: Efficient Tm:LuVO₄ laser at 1.9 μm.
abstract: We report an efficient laser-diode-pumped Tm-doped LuVO₄ crystal laser at about 1.9 μm. For the first time to our knowledge, the π-polarized Tm:LuVO₄ laser was achieved. The maximum output power and slope efficiency were 1.32 W and 28.7%, respectively. By comparison, it has been found that the a-cut Tm:LuVO₄ crystal should be more suitable for applications in high-power lasers. The central laser wavelength was observed to be located at about 1.9 μm and shifted to shorter with the increase of intracavity light intensity, which could be explained based on the reabsorption of light in the Tm:LuVO₄ crystal.
authors: State Key Laboratory of Crystal Materials and Institute of Crystal Materials, Shandong University, Jinan 250100, China.
authors: Haohai
authors: H
authors: Yu
authors: Zhongben
authors: Z
authors: Pan
authors: Huaijin
authors: H
authors: Zhang
authors: Zhengping
authors: Z
authors: Wang
authors: Jiyang
authors: J
authors: Wang
authors: Minhua
authors: M
authors: Jiang
mesh_terms: D007834:Lasers; D008027:Light; D008187:Lutetium / Q000737:chemistry*; D013932:Thulium / Q000737:chemistry*; D014638:Vanadates / Q000737:chemistry*
chemical_list: D014638:Vanadates; D008187:Lutetium; D013932:Thulium