定向耦合

- September 22, 2022 at 12:46 pm
  
  sam880302
  Subscriber
  
  除了FDTD可以架構一個曲律半徑兩公分的directional coupling架構(但是記憶體需求太大)
  還有甚麼軟件能夠讓我快速得到directional coupling結果的方式。
- September 22, 2022 at 9:00 pm
  
  Guilin Sun
  Ansys Employee
  
  曲律半徑兩公分就是2cm对吧，应该不是问题，问题是结构的几何尺寸是多大？
  如果占内存很多，你可能要用varFDTD 近似仿真一下。这是一个优化的例子供参考
  https://optics.ansys.com/hc/en-us/articles/360042800573-Inverse-Design-of-Grating-Coupler-2D-
- September 23, 2022 at 11:39 am
  
  sam880302
  Subscriber
  
  整個模擬區域為82000*82000*40(um)，上面給的優化方式好像沒辦法解決我的問題。
- September 23, 2022 at 3:16 pm
  
  Guilin Sun
  Ansys Employee
  
  这个例子不是让你去优化，而是借助例子用最后的结果来仿真。
  这个尺寸是很大了，目前能用的就是varFDTD做仿真。如果近似为直的没有弯曲的光栅，也可以用EME做。
  总之，这个尺寸已经在８厘米以上的确太大了。

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