Modulation depth and coupling efficiency were calculated in the range where LP03 mode are cut-off and LP02 mode are guided.
在少模光纤的LP03模截止且LP02导通的参数范围内，计算了调制深度和耦合效率与少模光纤参数的关系。
In this paper the cut-off frequencies of modes of waveguides are calculated via given eigenvalue equation. The results show good agreement with those from other sources.
文中通过所建立的本征方程对波导中各模式的截止频率进行了求解，数值结果与已有结果符合良好。
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