Thick-SOI photonics for sensing and imaging
VTT Technical Research Centre of Finland
PhotonHub Demo centre
20. 6. 2023
1 day
Silicon-based photonic integrated circuits
Mobility & energy Digital infrastructure Agro & food Manufacturing Safety, security, space & defence Health

Photonic integrated circuits (PICs) can be realized on many different technology platforms and used for numerous different applications. This course focuses on the so-called Thick-SOI platform and its use for sensing and imaging applications in the near and mid-infrared region. Primary focus is on 3 µm thick silicon-on-insulator (SOI) waveguide technology, which is the most mature PIC technology platform at VTT. This platform is also available for small-to-medium volume contract manufacturing via VTT and there is a path to large-volume manufacturing via Rockley Photonics. Process design kits are available in multiple PIC design software platforms.

This one-day hands-on training course provides industry an overview of the Thick-SOI PIC platform and its feasibility in sensing and imaging applications. A clean room tour in Micronova offers an overview of the used fabrication methods and facilities. Hands-on training includes 1) the design of 3 µm SOI PICs using PIC design software, 2) wafer-level testing (WLT) in the clean room and 3) PIC testing in the photonics measurement lab. The last part includes semi-automated fiber-to-waveguide alignment, optical beam steering with an optical phased array (OPA) and one sensing demonstration that varies from training to training and may include e.g. Faraday rotation in SOI waveguides or gas sensing with a tunable light source.

Register to June 2023 training via this link:

  • Understanding the technical advantages and limitations of Thick-SOI PIC technology, as well as its key applications
  • Learn how the Thick-SOI PICs are designed & simulated (hands-on activity)
  • See the fabrication process of 3 µm SOI PICs (visit to the clean room)
  • Learn how the Thick-SOI PICs are tested at wafer and chip-level (hands-on activity)
  • See demonstrations of 3 µm SOI PICs in sensing and imaging applications (hands-on activity)
No experience Medium experience Advanced experience
It is desirable but not essential that course attendees have a basic understanding of photonics. The course is ideally suited to those planning to develop new photonic products based on low-loss photonic integrated circuits (PICs) operating within the 1.2-6 µm wavelength range where the thick (µm-scale) silicon-on-insulator (SOI) waveguides can operate.
Tour in the clean room with a demo for automated wafer-level testing
Hands-on training for coupling light from fibers to waveguides
Hands-on training for optical beam steering
VTT (Otaniemi)
Micronova, Tietotie 3, Espoo
250 EUR
Coffee breaks, lunch, training consumables, training materials
10 persons