The main topics covered in the design trainings are waveguides and couplers, Mach-Zehnder interferometers, ring resonators, thermo optics, circuit simulation and mask layout. Whereas the class lab and hands-on characterization trainings cover a wide range of topics such as an introduction to optical and DC equipment, how a PIC characterization setup works, how to perform both active and passive measurements, and finally, how to process and analyse the extracted data. Participants have also the opportunity to fabricate their designs.