Applications
- FP Quantum Well lasers
- Ridge waveguide lasers
- SOI hybrid lasers
- VCSELs
- Quantum Dot lasers
Examples
- High power Fabry-Perot laser
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SOA (Link to PICWave)
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SOI/III-V Hybrid Laser
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Electro-Absorption Modulators (QCSE)
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Silicon Modulators
VCSEL Module
The VCSEL Module allows the calculation of multiple optical cavity modes, electrical drift diffusion, heat flow, and electron-photon interactions in a full 3D model.
Building on Photon Design’s decades of experience the VCSEL module provides a fully integrated design environment for the variety of the VCSEL types being used today, including QW materials, current blocking apertures, and more.
Harold Quantum Dot Module:
By employing a 3D strain model and an 8-band k.p model, it is possible to calculate the absorption and gain spectra of laser and SOA quantum dot structures. The QD module enables the design of quantum dot lasers that achieve high-temperature performance using quantum dot materials.
HAROLD's quantum dot model was developed in collaboration with Cardiff University, a leading research center for compound semiconductor photonics in the UK. Excellent agreement was observed between the results of the quantum dot model and experimental data measured at Cardiff University, on devices fabricated by UCL (University College London).
Download the HAROLD PDF
For more information on Photon Design's suite of photonic CAD tools, visit our page on PICWAVE .
Master HAROLD with our Video Library.
Discover the power of HAROLD with our video guides. Whether you’re new or experienced, our videos will help you unlock the full potential of HAROLD features and capabilities.
Recent Software Release Information
3月 30, 2026 04:10 午後
Harold Version 7.2.0 Release
HAROLD v7.2.0 New Features (Photon Design)
Harold Quantum Dot module:
By adopting a 3D strain mode
8月 26, 2024 06:58 午後
HAROLD Version 7.1 Release
HAROLD version 7.1 new feature highlights
Harold, HaroldXY and HaroldVCSEL modules: added wurtzite
4月 02, 2024 05:55 午後
HAROLD Version 7.0 Release
HAROLD version 7.0 now has a k.p. model for improved simulation of quantum wells.
The new version o