共振泵浦室温钬：钒酸镥激光器。

Resonantly pumped room temperature Ho:LuVO₄ laser.

作者信息

Yao B Q, Cui Z, Duan X M, Du Y Q, Han L, Shen Y J

出版信息

Opt Lett. 2014 Nov 1;39(21):6328-30. doi: 10.1364/OL.39.006328.

DOI:10.1364/OL.39.006328

Abstract

Spectroscopic characterization of a Ho:LuVO4 crystal grown by the Czochralski method has been performed, including the absorption and emission spectra. We demonstrate a 2 μm room temperature Ho:LuVO4 laser, resonantly pumped by a 1.94 μm Tm:YAP laser. By use of an output coupler with T=10% transmission, the Ho:LuVO4 laser generated continuous-wave output power of 2.5 W at 2074.18 nm, with a beam quality factor of Mx2=My2=1.3, for a total incident pump power of 19.4 W. The slope efficiency with respect to the pump power was 17.6%, and the optical-to-optical efficiency was 12.9%. Moreover, we obtained a Ho:LuVO4 laser that operated at 2073.77 and 2055.27 nm, by using different output couplers with transmissions of T=15 and 30%.

摘要

已对通过提拉法生长的Ho:LuVO4晶体进行了光谱表征，包括吸收光谱和发射光谱。我们展示了一台由1.94μm Tm:YAP激光器共振泵浦的2μm室温Ho:LuVO4激光器。通过使用透射率T = 10%的输出耦合器，在总入射泵浦功率为19.4W时，Ho:LuVO4激光器在2074.18nm处产生了2.5W的连续波输出功率，光束质量因子Mx2 = My2 = 1.3。相对于泵浦功率的斜率效率为17.6%，光光效率为12.9%。此外，通过使用透射率分别为T = 15%和30%的不同输出耦合器，我们获得了在2073.77nm和2055.27nm处工作的Ho:LuVO4激光器。