Photonics

Photonics

Ansys Insight: Confinement factor in FDE

    • Khashayar Ghaffari
      Ansys Employee
      How to calculate the mode confinement factor in FDE, MODE for a strip waveguide?nA simple way to get the fraction of power in a given region of the waveguide cross section is to use the ?Power and Intensity Integration? feature in the modal analysis tab of the Eigensolver analysis window after you have solved for the waveguide mode. There is more information about this feature here.nIf the cross section is more complex, you can try creating a spatial filter which has values of 1 over the core and 0 outside of the core. Once you have the spatial filter you can multiply the E intensity by the filter then integrate the result over the filter to get the power in only the core region.n
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