His main research interests are; all-optical signal processing, optical pulse generation and characterization,hybrid radio/fibre communication systems, wavelength tunable lasers for reconfigurable optical networks, and optical performance monitoring. He has published over 600 articles in international peer reviewed journals and conferences, and holds 10 patents in the area of opto-electronics. He has been a TPC member for the European Conference on Optical Communications (ECOC) intermittently from 2004 and served as ECOC Co-Chair for ECOC2019 in Dublin. He has also been a TPC member for the Optical Fibre Communication Conference (OFC) serving as Chair of the Optoelectronic Devices sub-committee for OFC 2010.