In his doctoral dissertation, Hossein Fathi investigated the power and energy scalability of short-pulsed fibre lasers generating conventional Gaussian beams as well as more complex forms of "structured light", such as optical vortices. His research demonstrated a record level of performance using innovative technologies based on the unique fibre architecture and coherent beam combining. These advances lay the foundation for a new generation of laser systems that have the potential to transform traditional laser-based manufacturing, medical technologies, scientific instrumentation and defence systems. The results provide more efficient, compact, and scalable laser solutions for industries and researchers relying on fast, high-precision light sources.
The doctoral dissertation of MSc Hossein Fathi in the field of Photonics titled Power and Energy Scaling of Short-Pulsed Fiber Lasers: From Fundamental to Structured Beam Profiles, will be publicly examined at the Faculty of Engineering and Natural Sciences at Tampere University on Friday 10 April 2026.
The Opponent will be Professor Almantas Galvanauskas from the University of Michigan in the United States of America. The Custos will be Associate Professor Regina Gumenyuk from the Faculty of Engineering and Natural Sciences at Tampere University.