Photon Design FimmWave Design Tool

FIMMWAVE is a software tool from Photon Design that includes waveguide mode solvers, advanced finite-difference and finite-element solvers, and fibre solvers. It is a generic, fully vectorial mode finder with applicability to a wide range of materials and waveguide geometries. The software includes FIMMPROP, a rigorous tool for solving bidirectional 3D optical propagation of lightwaves. Here are some example applications:

  • low-index polymer waveguides, high-index SOI, and GaAs/AlGaAs waveguides
  • buried, etched (rib, ridge), and diffused geometries commonly used in optoelectronics
  • single-mode and multi-mode optical fibres, as well as photonic crystal fibres
  • slot waveguides, slanted-wall, and graded structures
  • plasmonic and microwave waveguides.

More information about FIMMWAVE is available at

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