Applications

FIMMPROP is probably the most widely used propagation tool for the modelling of silicon photonics: rigorous (no slowly varying approximation), fully vectorial, offering wide angle capability and very high design flexibility. The examples below are a selection of applications focusing on silicon photonics.

FIMMPROP's 3D taper algorithm makes it the most versatile implementation of EME, whether it is to simulate a mode size-converting taper or the coupling region and spectral response of an SOI ring resonator.

Planar geometry:

Fiber geometry:

FIMMPROP can use FIMMWAVE's fiber solvers to design a large variety of fiber devices.

EME is the most efficient method to design and simulate Multi-Mode Interference (MMI) Couplers!

FIMMPROP offers two complementary approaches (RCMT and EME) for modelling optical gratings and periodic structures such as Bragg gratings or polarisation rotators.

FIMMPROP's scattering matrix approach is ideal to efficiently model structures with repetition (e.g. gratings with large supercells) or periodically rotated structures such as twisted fibre couplers.

FIMMPROP's unique combination of EME and PWE algorithms can be used to model the effect of AR coatings and thin film filters on the actual modes of the adjacent waveguides.

FIMMPROP can model many plasmonic structures much more efficiently than an FDTD or FEM tool.