弱导非线性自聚焦光纤无量纲模式参量的变分公式

Variational formulas of dimensionless modal parameters for a weakly-guiding nonlinear SELFOC fibre

用变分法导出了弱导近似下非线性自聚焦光纤线偏振模的无量纲模式参量和传播常数的解析式．结果由归一化频率、光功率和临界自聚焦功率给出．

The analytical formulas of the dimensionless modal parameters and propagation constants of linearlypolarized modes for a nonlinear SELFOC fibre are derived by using a variational approach under the weakly-guidingapproximation. The results are given in terms of the normalized frequency,optical power and critical SELFOC Power.