Latest News

The World’s First Hybrid Mesh (FETD) in OmniSim 8.0

The new version of OmniSim is here, and with it the world’s first hybrid mesh for our FETD solver; using multiple mesh element shapes together! When selected, OmniSim will automatically decide if an area of your device is complex and requires more closely conforming tetrahedral elements, or if efficiency gains can be made by using cuboid shaped elements. The hybrid mesh focuses your computational power where it’s needed, converging to accurate results much faster than our FETD has ever done before.

   OmniSim 8.0 also includes:
        • An upgraded 3D CAD interface, supporting extrusion of 2D to 3D shapes for creating tapered waveguides.
        • Arbitrarily rotated 3D shapes.
        • A real-time 3D view of the unprocessed device during the design stage.
        • Multiple bug fixes.

Simulating the Smallest of Details with EPIPPROP 3.4

We are pleased to announce the release of EPIPPROP version 3.4. This update allows you to examine the tolerance of your device with real world effects:
        • Model manufacturing defects by introducing variations to the layer thickness with either a random noise profile or an imported file.
        • Vary the temperature and refractive index over the area of the chip as defined by an import file.

In addition, the new ‘Etch & Fill’ process type allows for far more flexible waveguide geometries.

   EPIPPROP 3.4 also includes:
        • Improved calculation of optical path length for each output waveguide.
        • Multiple bug fixes.

Improved Accuracy in Quantum Wells with Harold 7.0

Harold’s newest update comes with the new k.p model, taking into account a non-parabolic band structure in quantum wells (QWs). This allows you to model gain, spontaneous emission, and perform carrier density calculations.

   Harold 7.0 also includes:
        • Support for forward-bias voltages in Harold QCSE.
        • Editable boundary conditions in the HaroldXY mode solver.
        • Improvements to the procedure for solving the Schrödinger equation in QWs.
        • Multiple bug fixes.

Even More Flexibility in FIMMWAVE 7.4

We’re pleased to announce the release of FIMMWAVE version 7.4. We’ve been increasing the amount of things that are possible when modelling Euler bends. Now you can model partial Euler bends which combine the Euler-bend sections with a constant-curvature bend. Such composite bends can be used to reduce bend losses in the devices you design.

Harold VCSEL

Photon Design has been invited to write an article about VCSEL design in the magazine Compound Semiconductor. Read the article here: Compound Semiconductor Vol. 26(4) (page 34).

Harold/VCSEL is now multi-mode! This challenging and significant advance in VCSEL modelling provides an important leap forward in VCSEL design.