Foundry | Material Platforms
A material platform with low loss and a wide transparency window. It is chosen for passive circuits and for applications from the visible to the near infrared. LightBridge can advise on the LIGENTEC SiN platform.
Silicon nitride (SiN) waveguides
Low-loss passive circuits, visible to near infrared
This varies by foundry and by run. Please contact us.
Waveguides, resonators and filters where propagation loss has to be kept down
Designs working at wavelengths from the visible to the near infrared
Circuits using optical confinement and dispersion as design variables
If high-speed modulation and detection are central to the design, consider Silicon Photonics; if an on-chip source and optical amplification are central, consider Indium Phosphide. SiN also has options for integrating active functions, so judge from the target foundry’s coverage and your requirements.
Scope
Assess the fit of the platform from the target wavelength and how far loss has to be reduced.
Circuits are built on waveguides with propagation loss kept down.
Used in circuits built from resonators and wavelength filters.
Covers a wide wavelength range, from the visible to the near infrared.
The layer stacks available and the design rules are set by the target foundry’s PDK.
Design workflow
How the design process works, including analysis and simulation, is covered under Solutions.
August 28, 2026
You do not need measured data. We will advise on the fit of the platform and how to proceed.