摘要
报道掺铒光纤放大器增益随温度变化的依赖关系，提出了一个解释这种依赖关系的数学模型。此模型基于如下假设：由于温度的变化，引起处在基态和激发态的斯塔克（Ｓｔａｒｋ）能级上的掺铒离子（Ｅｒ３＋）浓度的重新分布，从而引发光纤发射截面和吸收截面的变化。理论结果与实验结果符合很好。
In this paper, the temperature dependence of the gain in Er doped fiber amplifiers is discussed and a mathematical model to explain the dependence is presented. The model is based on the assumption that temperature affects the emission and absorption cross sections of the fiber due to redistribution of dopant concentrations in the Stark energy levels of the ground and excited states. The results from the model agrees well with measurement results.
关键词
光纤放大器
增益
发射截面
吸收截面
温度
fiber amplifier
gain
emission cross section
absorption cross section.
