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Photonics – Chinese

Photonics – Chinese

Topics related to Lumerical and more, in Chinese language.

关于建模时如何设置有侧壁角的Ring的问题

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    • ChengYuxuan
      Subscriber

      由于工艺限制,刻蚀的直波导和圆环波导都是有一定的侧壁角的,侧壁角在直波导中仿真问题可以用waveguide来解决,那Ring的话如何仿真会更准确呢?

      1)用三阶贝塞尔函数来仿真,虽然可以做到侧壁角,但与ring相比相差有点大

      2)用矩形近似,但要仿真多波长光源输入,仍会造成不准确。

      感谢解答!

    • Guilin Sun
      Ansys Employee

      目前侧壁角生成方法一般用Planarsolid https://optics.ansys.com/hc/en-us/articles/360034382334-Tips-for-adding-sidewall-angles-to-simulation-objects

      你试一下看看增加点数能否改善。

      另一种方法就是用很多不同半径的圆环一层一层垒起来,你看看结构组中类似的例子。

       

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