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光栅耦合器的逆向设计问题

- January 19, 2025 at 9:10 am
  
  2971462718
  Subscriber
  
  用基于梯度下降的伴随法来优化多个模式的光栅耦合器（3D优化），明明第0次的迭代中评估的梯度有效果比之前的好了，但是不进入第1次迭代，反而在第0次迭代不断进行梯度评估，后面评估几次后FOM越来越低了，这是怎么回事？
- February 7, 2025 at 3:57 am
  
  GuanYo Dong
  Subscriber
  
  你好,
  建議等算法找到確定的優化方向喔!
  我們之前也討論過,基于梯度下降的伴随法迭代优化问题
  有的結構確實沒有那麼快找到梯度或是合適的步長,給算法一些時間
  莎益博董冠佑

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