【摘要】 文中分析了描述掺Yb3+光纤放大器(YDFA)的能级速率方程和光传输方程,得到了掺Yb3+光纤放大器的速率-传输方程组在稳态条件下的解析解,在此基础上得到了泵浦阈值和小信号下最佳光纤长度的表达式,并利用数值模拟结果对放大器的增益特性、泵浦阈值、最佳光纤长度进行分析和讨论。更多还原

【Abstract】 Based on analyzing rate equations and light propagation equations of ytterbiumdoped fiber amplifiers in this paper,analytical solutions have been derived for these equations under the condition of the steadystate.The pump threshold expression and the optimum fiber length expression of a small signal are also deduced.Using numerical simulations,gain、pump threshold power and the optimum fiber length of the amplifiers have been analyzed and discussed.更多还原