Interconnect中直波导相移问题

- May 31, 2022 at 1:34 pm
  
  Tlyeer
  Subscriber
  
  老师你好，我早interconnecte中仿真直波导的相移，设置有效折射率2.45，群速度4.24，长度10um，根据公式
  计算出的相移应该为99.31rad，而ONA分析却得到
  
   请问这里的角度是怎么计算得到的为什么与公式对应不上？
- May 31, 2022 at 7:59 pm
  
  Guilin Sun
  Ansys Employee
  
  "计算出的相移应该为99.31rad，而ONA分析却得到"
  
  超过2Pi整数倍的都会被去掉，你减去30个Pi试一下。
  
  另外，这个波导下模式参数是从文件里读的还是仅设置？是单波长还是宽谱？宽谱的话位相可能从低频作为参考点计算的。
  
  位相具有相对性，参考点不同结果有可能不同。

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