On November 6th, the "ScholarsForum", organized by the Center for Teacher Development andsponsored bySICE,hostedProfessor Goëry Genty fromTampereUniversity, a fellow of the American Optical Society (OSA) and the European Optical Society (EOSAM). Professor Genty delivered an advanced academic lecture titled “Advances in nonlinear fiber-optics: emerging platforms and enhanced control”to the faculty and students of the university. The lecture was moderated by Professor ZinanWANG.
Professor Goëry Genty stated that the transmission of intense short laser pulses in optical fibers is associated with rich nonlinear propagation scenarios and multidimensional dynamic mechanisms. In multimode optical fibers, nonlinear coupling between different modes significantlyincreases the complexity of the system. This coupling has spatiotemporal effects, impacting the spatial beam distribution of the output. In recent years, this complexity has garnered widespread attention, leading to fundamental research into the underlying physics principles and the development of new application areas, such as imaging or remote sensing, due to the potential light sources provided by these complex dynamics. Due to the immense system complexity, traditional modeling and control of these situations pose significant challenges.
In his presentation, Professor Genty introduced the rapid development of intelligent ultrafast photonics, where the combination of machine learning algorithms with nonlinear optical systems allows performance optimization and control, high-speed feature recognition, specific feature identification in noisy data, or enhanced efficiency. In this lecture, Professor Genty reviewed the latest research results on nonlinear dynamics in multimode fibers (including step-index and graded-index fibers made of silicon and soft glass). The research on using machine learning techniques in the analysis and control of nonlinear dynamics was also discussed.
During the interactive session, Professor Goëry Genty and the faculty and students engaged in enthusiastic discussions and exchanges on the effectiveness and convenience of multimode fibers as platforms for high-power supercontinuum generation. Simultaneously, based on questions raised by the faculty and students, Professor Goëry Genty further mentioned that designing gradient refractive index fibers is another promising direction for generating mid-infrared supercontinuum, providing valuable insights for research in the field of supercontinuum generation.
After the interactive session, Professor Goëry Genty, along with Professor Yunjiang RAO and others, participated in further academic discussions.
This academic salon was organized by the Center for Teacher Developmentandsponsored bySICE.
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Goëry Genty obtained his master's degree from the Institute d'Optique Graduate School in France in 1998 and his Ph.D. from the University of Oulu in Finland in 2004. Since 2014, he has been a professor atTampereUniversity. His research covers ultrafast dynamics and instabilities, supercontinuum generation, real-time measurement techniques, machine learning, as well as applications in sensing and imaging. He received the IUPAP International Young Scientist Award in Optics in 2011 and the Physics Award from the Finnish Academy of Science and Letters in 2019. He is a fellow of the American Optical Society (OSA) and the European Optical Society (EOSAM) and has published over 150 research papers. Goëry Genty also serves as thechairmanof the Photonics Research and InnovationFlagship and the Finnish National Research Infrastructure for Optical Technologies, both prestigious projects funded by the Academy of Finland.
