Semiconductor photonics can be built from Indium Phosphide (InP), Gallium Arsenide (GaAs) and Silicon (Si). Most photonics systems which integrate multiple components into single chips (PICs) are built from either Si or InP. The main difference between these platforms is that while Si can only produce passive components to manipulate light, InP can also form active components which generate light (such as lasers and amplifiers). Therefore, InP systems have a great advantage in being able to be fully integrated, without the need for external light sources, thus achieving the inherent advantages of integration: limited interconnections, high density, low power, low cost, better, more reliable and robust operation.
Disruptive nature of SMART: SMART is unique as an independent InP foundry, which produces photonic components exclusively for third parties, and in this way makes photonic technology accessible to SMEs as well as large companies. All other producers of PICs are vertically integrated, developing capabilities for their own, narrow use cases, and are not accessible to other innovators. Their design systems do not offer the flexibility of the modular approach, so that each new application must be laboriously built from scratch.