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Lumerical Mode Solver

- October 25, 2024 at 9:07 am
  
  512105003
  Subscriber
  
  Hi,
  I have conducted an analysis of my waveguide design using the Mode Solver to achieve a single mode operation, and the results are attached. According to the results, the effective index of Mode 1 is calculated as 1.605514, with TE/TM polarization fractions of 82.1% and 83.17%, respectively. Mode 2, on the other hand, has reached cutoff and does not propagate. I am uncertain about the correct naming for Mode 1—would it be appropriate to label this mode as TM00? Could you please clarify the correct mode designation? Additionally, I would appreciate any explanation regarding the TE polarization fraction and the waveguide TE/TM fraction.
  Huriye
- October 25, 2024 at 10:31 pm
  
  Guilin Sun
  Ansys Employee
  
  Somehow my reply was not successul so I reply it again:
  TE/TM naming is not unique. and due to different conventions and approximations, the definition can be controvvesal. Silicon photonics or other high-index-contrast waveguides have tight mode confiement. so strict deinition can be challenge. You can define the mode by your self.
  Please visit this post
  Ansys Insight: 有关TE、TM偏振以及模式光源的问题

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