Wang Sheng-Li, Huang Chong-Yuan, Zhao Cheng-Chun, Li Hong-Qiang, Tang Yu-Long, Yang Nan, Zhang Shuai-Yi, Hang Yin, Xu Jian-Qiu
Key Laboratory for Laser Plasmas, Ministry of Education and Department of Physics, Shanghai JiaoTong University, Shanghai 200240, China.
Opt Express. 2013 Jul 15;21(14):17359-65. doi: 10.1364/OE.21.017359.
We report the first laser operation based on Ho(3+)-doped LuLiF(4) single crystal, which is directly pumped with 1.15-μm laser diode (LD). Based on the numerical model, it is found that the "two-for-one" effect induced by the cross-relaxation plays an important role for the laser efficiency. The maximum continuous wave (CW) output power of 1.4 W is produced with a beam propagation factor of M(2) ~2 at the lasing wavelength of 2.066 μm. The slope efficiency of 29% with respect to absorbed power is obtained.
我们报道了基于掺Ho(3+)的LuLiF(4)单晶的首次激光操作，该单晶由1.15μm激光二极管（LD）直接泵浦。基于数值模型，发现交叉弛豫诱导的“二合一”效应在激光效率中起着重要作用。在2.066μm的激光波长下，产生了1.4W的最大连续波（CW）输出功率，光束传播因子M(2)约为2。相对于吸收功率，获得了29%的斜率效率。
