通过对石英玻璃光纤芯径组分及Tm3+掺杂浓度的优化,有效地提高了Tm离子间的交叉驰豫过程,实现了掺铥光纤激光的高功率、高效率运转.当耦合的790 nm泵浦光为137 W时,掺铥光纤激光产生了81.5 W连续2.03μm激光输出,相对于耦合泵浦光的激光斜效率达62.5%,为斯托克斯极限效率的1.7倍.最后讨论了进一步提高激光输出性能的方法和可行性. By optimizing the core component and Tm3 + doping concentration of silica glass fiber, the cross-relaxation process of Tm ions is effectively improved, and the high power and high efficiency operation of doped fiber laser is realized.When the coupled 790 nm pump When Pu Guang is 137 W, the doped 铥 fiber laser produces a continuous laser beam with a wavelength of 81.5 W and a laser output of 2.03 μm with a laser oblique efficiency of 62.5% with respect to the coupled pump light, which is 1.7 times the Stokes’ ultimate efficiency. Finally, Methods and feasibility of improving laser output performance.