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Photonics – Chinese

Photonics – Chinese

Topics related to Lumerical and more, in Chinese language.

fde模式分析

    • u4rp4wgn
      Subscriber

      请问FDE的过程中,我怎么让模式的排序不发生变化呢,mode2有时候是TM0,到后面变成TE1怎么才能让mode2一直记录TM0的变化呢,就例如这个,TE的高阶模找到后,会顶替前面的位置,怎么才能不顶替呢。

    • Guilin Sun
      Ansys Employee

      如果这些模式有不同的对称性,可以采用对称性边界条件:

      Ansys Insight: 模式光源的对称与非对称性

      因为波导结构或者材料变化,模式也跟着变化,结果是按模式折射率实部(当虚部小于实部时)排列的,有时可能出现相同偏振特性的模式多于另外一种偏振,排序就发生改变。

       

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