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本文在忽略放大自发辐射 (ASE)和上转过程影响的情况下 ,用重迭因子的方法 ,得到了 980 nm波段泵浦的掺铒光波导放大器增益的隐式解析解、泵浦光沿波导方向分布的函数关系式和泵浦阈值功率的解析表达式。详细讨论了重迭因子对增益、泵浦阈值功率和波导中任意位置泵浦光分布的影响。
By neglecting the effects of ASE and the up-conversion process, an implicit analytic solution of the gain of an erbium-doped waveguide amplifier pumped at 980 nm is obtained by the method of overlap factor. The analytical expression of the functional relation of the directional distribution and the power of the pump threshold. The effect of overlap factor on gain, pump threshold power and pump light distribution at any position in the waveguide is discussed in detail.