介绍了Ⅴ-Ⅰ传输矩阵方法用于布拉格光纤光栅的理论分析,该方法通过参量变换将相邻薄层间的界面矩阵退化为单位矩阵,从而大大提高了计算效率.从传输矩阵出发.数学上推导出耦合模方程,证明了该方法的正确性,有助于加深对Ⅴ-Ⅰ传输矩阵方法物理机制的理解.数值模拟分析发现Ⅴ-Ⅰ传输矩阵方法具有计算快速、简单明了的优点.最后还指出Ⅴ-Ⅰ传输矩阵方法仅适用于短周期光纤光栅,若要运用于长周期光纤光栅,需要进一步理论修正.
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