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.

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FIMMPROP

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

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FIMMPROP

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.

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FIMMPROP

Find the modes of arbitrary bent waveguides and calculate associated bend losses with FIMMWAVE. Model non-circular bends and insertion losses with FIMMPROP.

Examples:

Bend Modes

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FIMMPROP FIMMWAVE

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

Examples:

Tools:

FIMMPROP

FIMMWAVE supports a large number of complementary mode solvers, which allows it to solve a large variety of waveguides which may be made of any material and of almost any geometry. FIMMWAVE allows you to find the modes, calculate mode size, dispersion, single mode conditions and perform arbitrary parameter scans. Please see also Optical Fibers for mode solving and propagation in optical fibres.