Opt Lett. 2013 Aug 15;38(16):3075-7. doi: 10.1364/OL.38.003075.
We report on a diode-pumped Nd:YAG ceramic laser operating at 1442.8 nm for the first time. In our experiment, two different Nd:YAG ceramics with the Nd-doped concentrations of 1.0 and 0.6 at. % and a Nd:YAG with the Nd-doped concentration of 1.0 at. % were used as the laser gain mediums, respectively. At a pump power of 20.7 W, a maximum output power of up to 3.96 W with optical-to-optical efficiency of up to 19.1% was obtained by using the 1.0 at. % Nd-doped ceramic as the laser gain medium. To the best of our knowledge, this is the highest output power of a LD-pumped 1.44 μm Nd:YAG ceramic laser and the highest optical-to-optical efficiency of a LD-pumped 1.44 μm Nd-doped crystal laser.
我们首次报告了一种二极管泵浦 Nd:YAG 陶瓷激光器，其工作波长为 1442.8nm。在我们的实验中，分别使用了掺杂浓度为 1.0 和 0.6 at.%的两种不同的 Nd:YAG 陶瓷以及掺杂浓度为 1.0 at.%的 Nd:YAG 陶瓷作为激光增益介质。在泵浦功率为 20.7W 的情况下，使用掺杂浓度为 1.0 at.%的 Nd 陶瓷作为激光增益介质，获得了高达 3.96W 的最大输出功率，光光转换效率高达 19.1%。据我们所知，这是 LD 泵浦 1.44μm Nd:YAG 陶瓷激光器的最高输出功率，也是 LD 泵浦 1.44μm Nd 掺杂晶体激光器的最高光光转换效率。
