Yao B Q, Yu X, Liu X L, Duan X M, Ju Y L, Wang Y Z
National Key Laboratory of Tunable Laser Technology, Harbin Institute of Technology, Harbin, 150080, China.
Opt Express. 2013 Apr 8;21(7):8916-21. doi: 10.1364/OE.21.008916.
We report on a monolithic 1645 nm Er:YAG nonplanar ring oscillator (NPRO) resonantly pumped by a fiber-coupled laser diode. In the experiment, an up to 550 mW single frequency laser output at 1645.2 nm was obtained, corresponding to a slope efficiency of 19.1% and an absolute efficiency of 6.0%. The beam quality M2 was measured to be 2.1 at the highest output power.
我们报道了一种由光纤耦合激光二极管共振泵浦的单片1645纳米铒钇铝石榴石非平面环形振荡器（NPRO）。在实验中，获得了高达550毫瓦、波长为1645.2纳米的单频激光输出，斜率效率为19.1%，绝对效率为6.0%。在最高输出功率下，测量的光束质量M²为2.1。
