报告题目：Advances in Nonlinear Fiber-Optics: Emerging Platforms and Enhanced Control
报告人：Goëry Genty 教授
报告人单位：Tampere University
主持人：闫明 研究员
地点：光学大楼A508会议室
时间：2024年4月22日（周一）11:00
报告内容：
The propagation of short and intense laser pulses in an optical fiber is known to be associated with a rich landscape of nonlinear propagation scenarios and multidimensional dynamical regimes. In multimode fibers, the nonlinear coupling between the different modes increases dramatically the complexity of the system with spatio-temporal effects that also affect the output spatial beam profile. This complexity has attracted significant interest in the past few years not only from a fundamental physics viewpoint but also because these complex dynamics provide unique opportunities to generate light with tailored characteristicsopening new opportunities for applications e.g. in imaging orremote sensing. These can be challengingto model and control using conventional approaches. Recently, there has been rapid growth in the field of smart ultrafast photonicswhere machine-learning algorithms are combined with nonlinear optical systemsallowing foroptimized performance and control, high-speed characterization and identification of particular features within noisy data, or enhanced functionalities. In this talk, I will review our recent work and observations of nonlinear dynamics in multimode fibers, including multimode step-index and graded index fibers made of silica and soft glasses.I will also discuss the use of machine learning techniques in the analysis and control of nonlinear dynamics.
报告人简介：
Goëry Genty obtained his from Ecole Supérieure d’Optique (France) in 1998 and PhD degree from Aalto University (Finland) in 2004. He has been Professor at Tampere University since 2014. His interest ranges from the study of ultrafast dynamics and instabilities, supercontinuum generation, to real-time measurement techniques, machine learning and applications in sensing and imaging. Awards include the IUPAP Young Scientist International Prize in Optics in 2011, the Physics Prize of Finnish Academy of Science and Letters in 2019 and the 2024 European Physical Society Prize for Research into the Science of Light. He is Fellow of the Optical Society of America, European Optical Society and he has published more than 150 publications in peer-reviewed journals. Goëry Genty is also the director of the Flagship for Photonics Research and Innovation and director of the Finnish national research infrastructure for light-based technologies, two of the most prestigious research programs funded by the Academy of Finland.