Haus H A
Appl Opt. 1975 Nov 1;14(11):2650-2. doi: 10.1364/AO.14.002650.
An approximate method is presented for the analysis of overcoupled distributed feedback lasers. A closed form expression is obtained for the power emitted by a laser normalized to the saturation power in terms of the loss coefficient alpha(L), small signal gain coefficient alpha(0), coupling parameter kappa, and length of the laser L. The result is compared with published computer solutions, and good agreement is obtained in the range |kappa|> 4; qualitative agreement extends to |kappa|L = 1. The closed form expression is adapted to predict the saturation behavior of leaky-wave lasers.
提出了一种用于分析过耦合分布反馈激光器的近似方法。得到了一个封闭形式的表达式，用于表示激光发射功率相对于饱和功率的归一化值，该表达式是根据损耗系数α(L)、小信号增益系数α(0)、耦合参数κ以及激光器长度L给出的。将结果与已发表的计算机解进行了比较，在|κ|> 4的范围内取得了良好的一致性；定性一致性扩展到|κ|L = 1。该封闭形式的表达式适用于预测漏波激光器的饱和行为。
