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Ansys Learning Forum Forums Discuss Simulation Photonics Designing a single mode fiber Reply To: Designing a single mode fiber

Guilin Sun
Ansys Employee

Ibelieve that two modes you get are correct: they are degenerated TE and TM modes. Their mode profile is the same with the same neff. If you use some  kind o fsymmetry BCs, one will disappear. For example, you can use xmin anti-symmetric, and ymin symmetric. You can check the SMF example.

 

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