同时优化两个输出端TE/TM 偏振分光器

- February 24, 2023 at 10:16 am
  
  Ray Chen
  Subscriber
  
  老师您好，
  我最近在使用lumerical内建的PSO来优化偏振分光器，我想尝试同时优化两个输出端(TE/TM)，因此在optimization加入sweep分别打入不同的模态
  以及在model中将两个输出端的结果相加
  如果是单独优化一个输出端是可以运行的，然而当我想尝试同时优化两个输出端时，结果是显示错误的
  请问有什么方法可以在输入不同模态下，同时优化两个输出端
  谢谢
- February 24, 2023 at 7:34 pm
  
  Guilin Sun
  Ansys Employee
  
  你这个错误信息是数据矩阵维数不对。你需要调出来看看是什么原因。
  
  两个模式同时优化可能复杂一些。我觉得应该是同时输入TE和TM模式光源（无法使用Port），然后分别计算出它们的透射率。再将它们合理地加入一个FOM里面来优化，你可能需要修改 target_T_fwd
  https://optics.ansys.com/hc/en-us/articles/360050995394
  当然也有可能分别仿真，不够我觉得可能有点问题。
  可能需要你做很多工作。
- February 25, 2023 at 6:03 am
  
  Ray Chen
  Subscriber
  
  十分感谢您的回覆，之前我有尝试过同时输入TE与TM模式的光源，然而两种光源会互相干扰，似乎会出问题。
  我会再尝试看看，谢谢。
- February 27, 2023 at 5:30 pm
  
  Guilin Sun
  Ansys Employee
  
  如果器件有起偏作用，也就是模式转化，如果同时输入就有相互干涉的问题，你也可以先测试看看这种起偏效应有多大，如果不大的话如此仿真节省一半时间。如果你能让系统分别仿真两个不同的输入，优化过程可能会更长时间。总之你这种是新的探索，需要时间和智慧慢慢解决，不要急。
- February 28, 2023 at 11:57 am
  
  Ray Chen
  Subscriber
  
  好的，谢谢你的回覆🙏

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