The Tyndall National Institute (Tyndall) at University College Cork is Ireland’s largest ICT research centre, with more than 500 researchers, postgraduate students and support staff. The strengths of the institute lie in the area of photonics, electronics and integrated circuit design, materials and nanotechnologies and their applications in communications, healthcare, energy and the environment. The photonics centre and the Irish Photonic Integration Centre (IPIC - ipic.ie) has strategic research projects funded through national and industry sources, addressing all aspects of photonic systems starting from the basic materials, photonic devices and assembly up to full system demonstrations. Facilities at the centre are extensive, including epitaxial growth, device fabrication, photonic/electronic packaging and advanced system characterisation. The III-V materials and devices group develops original photonic devices based on GaN, GaAs and InP covering the spectrum from 250nm to 2200nm. It uses transfer printing to combine these devices into photonic integrated circuits for use in communications, sensing and biomedical applications.