中文摘要：

基于速率方程理论建立了石英基掺Tm3＋光纤激光器3H6—3H4抽运方式的理论模型,采用龙格-库塔（Runge-Kutta）法对该模型进行了数值分析,得出抽运光与激光功率在掺Tm3＋光纤中的分布特性,并对Tm3＋光纤长度、Tm3＋的掺杂浓度等因素对掺Tm3＋光纤激光器性能的影响进行了相关分析.

英文摘要：

In this paper,a theoretical model of Tm3 ＋ doped silica fiber laser（TDSFL） for 3H6—3H4 pumping mechanism is established based on the rate-equation theory,and the numerical simulation is performed by using the Runge-Kutta algorithm.The introcavity power distributions of the TDSFL are obtained for both pump and laser,and the effects of Tm3 ＋ doped fiber length and Tm3 ＋ concentration on laser performance are analyzed.