Home Forums BPM non-linearity and loss

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    • #49316
      Julian Schulz
      Participant

      Hi,
      is there a way to add losses to a non-linear fiber in OptiBPM?
      I defined the refractive index including the non-linear part using a User Function Profile. But I see no way to add losses (i.e. an imaginary part to the refractive index) the way it is possible to do in Materials -> Dielectric.
      I would be glad for any suggestions.

    • #49329
      Julian Schulz
      Participant

      Works now. I used a trick: make the User Function additive and overlay it with a usual dielectric that is absorptive. You have to take care to create the dielectric first though, otherwise you overwrite it.

      Still it would be interesting to know if you can add an imaginary part to the refractive index in the User Function Profile directly. Does anyone know how to?

    • #49338
      Steve Dods
      Participant

      Unfortunately User Function Profile returns only real numbers. There is no way to add loss as a calculated imaginary part of refractive index. On the other hand, putting an additive User Function Profile on a lossy dielectric is a clever trick. That should be a good workaround for most cases.

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