Photonics – Chinese

Photonics – Chinese

Topics related to Lumerical and more, in Chinese language.
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  3. 光栅耦合器仿真不收敛

光栅耦合器仿真不收敛

    • January 23, 2024 at 9:32 am
      LLL
      Subscriber

      您好，最近在做光栅耦合器的仿真，但是一直不收敛请问是什么原因呢？

      单波长1550nm，mesh精度2，3D需要运行接近7h合理吗

       

    • January 31, 2024 at 6:59 am
      Zheng Zhou
      Ansys Employee

      您好，光栅耦合器因为整体器件尺寸很大且光栅结构尺寸很小，需要网格划分很细，可以参考官网的一些设定：Grating coupler

      此外不收敛的原因很多，或许需要更细的网格，或者更长的仿真时间以及更厚的 PML 层数等等。可以参考：

      Convergence testing process for FDTD simulations

       

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