基于铋纳米片吸收体的连续波和调Q钕：铋锗酸镧氧（Nd:BGSO）激光器。

Continuous-wave and Q-switched Nd:BGSO lasers based on bismuth nanosheets absorber.

作者信息

Feng Xiaoyue, Lin Yunkun, Yu Xiuru, Wu Qinghui, Huang Hao, Zhang Feng, Ning Tingyin, Liu Jie, Su Liangbi, Zhang Han

出版信息

Appl Opt. 2019 Aug 20;58(24):6545-6548. doi: 10.1364/AO.58.006545.

DOI:10.1364/AO.58.006545

Abstract

This Nd:BGSO (Nd:BGSO) crystal was grown using the micro-pulling-down method, and the continuous-wave laser operation of this crystal was demonstrated for the first time, to the best of our knowledge. The maximum output power of 1.038 W was obtained under the absorbed pump power of 3.01 W, which corresponds to a slope efficiency of 31.3%. Bismuth nanosheets were first employed as saturable absorbers to generate a passively Q-switched Nd:BGSO laser. Stable Q-switched pulses with the shortest pulse width of 376.5 ns and the maximum repetition rate of 136.6 kHz were achieved at the absorbed pump power of 3.01 W. The largest pulse energy and highest peak power achieved were 0.94 μJ and 2.48 W, respectively.

摘要

这种钕掺杂的硅酸铋镓氧（Nd:BGSO）晶体采用微下拉法生长，据我们所知，首次演示了该晶体的连续波激光运转。在3.01 W的吸收泵浦功率下获得了1.038 W的最大输出功率，对应的斜率效率为31.3%。首次采用铋纳米片作为可饱和吸收体来产生被动调Q的Nd:BGSO激光器。在3.01 W的吸收泵浦功率下，实现了最短脉冲宽度为376.5 ns、最大重复频率为136.6 kHz的稳定调Q脉冲。获得的最大脉冲能量和最高峰值功率分别为0.94 μJ和2.48 W。