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Photonics – Chinese

Photonics – Chinese

Topics related to Lumerical and more, in Chinese language.

利用FDE扫描群折射率与波长的关系图出现拐点

    • Rui Li
      Subscriber

      老师您好:

      在扫描有效折射率、群折射率随波长变化的关系图时,得到群折射率的图中在1531nm和1600nm都会出现拐点,在改变波导结构的宽度,以及不同模式其拐点所对应的波长位置不变。实线代表基模,虚线代表一阶模,mesh的dy和dz设置的为0.002μm。想请问老师 :怎么才能避免出现拐点以及出现拐点的原因是什么?

    • fengyang
      Subscriber

      折射率拟合有调过吗?

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