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Further Strides forward for MT-FIMMPROP in FIMMWAVE 8.1

This new advancement for FIMMWAVE introduces improvements across the board for FIMMWAVE users:

  • Exploit Symmetry, Cut Runtime – With the new ability to flip sub-devices vertically and horizontally in MT-FIMMPROP, symmetric computational regions can be cut in half and simulated at twice the speed. MT-FIMMPROP also sees tilted waveguide side-walls and corner rounding to more closely describe devices being fabricated.

  • Powerful new mode filters allow waveguide modes to be selected based on many different mode properties, e.g. “is the mode leaky?”, “is it confined to waveguide X?”, “is it TE-like polarised?”.

  • FEM improvements for FIMMPROP –The FEM Mode Solver is now upgraded to have all the advantages of the FDM Mode Solver while maintaining the accuracy advantage of FEM. This leads to much faster FEM-FIMMPROP simulations using less memory in many cases.

Learn more about MT-FIMMPROP.

Continuous Community Driven Improvement in PICWave 6.2

PICWave undergoes continuous improvements lead by community feedback in this latest version.

This includes:
        • Allowing for arbitrary signal functions (also controlled with variables).
        • Improvements to the kappa calculator for gratings.
        • Improvements to voltage dependent QCSE modelling including saturation effects.
        • Expanded support for filtering modes by their properties.
        • Multiple bug fixes.

Small Reflections, BIG Impact with EPIPPROP 3.5

Facet reflections can now be acounted for in EPIPPROP for both AWGs and Echelle gratings. The effects of this can be shown in our latest example where an AWG is exported to PICWave.
Additionally, support for mode filtering has been expanded so modes can be filtered by effective index, polarisation, confinement factor, and other further mode properties.

   EPIPPROP 3.4 also includes:
        • Significant improvements to uniform FDM solver's accuracy for specific mode properties.
        • Multiple bug fixes.

Improvements across the board with OmniSim 8.1

We’re happy to announce OmniSim’s latest version 8.1 with upgrades in many areas. To name a few:
        • The total field/ scattered field exciters are now included in the FDTD engine, giving users the tools to conveniently investigate scattering due to an individual element in a bound volume.
        • Efficiency gains have been made in both FDTD and FETD when rerunning simulations if the device is unchanged since a previous calculation by reusing rendered structures/ meshes that have been built.
        • Beam exciters in the ZX plane can now be titled, offering further freedoms for simulations with FDTD and 2D FETD.
        • Multiple bug fixes.

Simulating Nitride Lasers with Harold 7.1

We are pleased to announce the release of Harold version 7.1. This update features a wurzite material model to allow simulation of short wavelength nitride-based devices.

   Harold 7.1 also includes:
        • Support for non-linearly graded layers.
        • A thermionic emission model for computing carrier flow across heterojunctions in HaroldXY and VCSEL.
        • Improvements to the accuracy of the refractive index spectra in HaroldQCSE.
        • Multiple bug fixes.