2. A, Tzanakaki, C. Mas, I. Zacharopoulos, I. Tomkos, CONTEL 2003, Zagreb, Croatia
3. É.Tomkos, I. Zacharopoulos, D.Syvridis “Wave mixing in semiconductor devices for optical signal processing applications”, COST267 Workshop on semiconductor devices for optical signal processing, 22-24 April 1999, Rome.
4. D.Syvridis, I. Tomkos, I. Zacharopoulos, “Dual pump wave mixing: Polarization Sensitivity or Enhanced Performance”, ACTS Projects, Photonics domain workshop on WDM networks and related technologies, 6-8 May 1998, Brussels
5. I.Tomkos, I. Zacharopoulos, D.Syvridis, “Terahertz four wave mixing in semiconductor optical amplifiers. Experimental and theoretical results”, HCM GIGA-PICO workshop 16-17 April 1997, Rhodes, Greece
