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Ansys Learning Forum › Forums › Discuss Simulation › Photonics › MODE EME Taper Simulation Question › Reply To: MODE EME Taper Simulation Question

September 21, 2023 at 9:16 am
Niki Papachristou
Ansys Employee

Hi Deng,

Thank you for reaching out to us. I believe that your results can be explained if you do a mode overlap analysis. Please have a look on this article: Understanding the mode overlap calculation. It seems that in your case modes 4 and 5 have a stronger overlap with mode 1 while they are guided into your tapered waveguide comparing to modes 2 and 3.

Kind Regards,

Niki

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