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通过求解掺铒光纤的稳态传输方程，对FP腔掺铒光纤激光器的输出特性进行了分析，获得了用掺饵光纤材料参数和激光器谐振腔结构参数表示的激光器输出光功率、阈值泵浦功率和科率效率的解析表达式。就泵浦光残余反射率对激光器性能的影响进行了分析。
By solving the steady-state transmission equation of erbium-doped fiber, the output characteristic of erbium-doped fiber laser in FP cavity was analyzed. The output power of laser with output parameter of erbium-doped fiber and the structural parameters of laser resonator were obtained. The threshold pump power And rate of efficiency of the analytical expression. The influence of residual pump reflectivity on laser performance is analyzed.