On March 27 and 28 at CALM (Campus la Borie, Limoges) the “Cordées de la Recherche” (Research climbing rope) workshops will take place. The opportunity for our M1 students to present their scientific work in poster form.

The two days will be punctuated by conferences.

For this 2025 edition, discover each week the portraits of the speakers who will be present.

The first portrait of the week is Pr. Goëry GENTY:

Abstract

50 years of solitons in waveguides optics: from fundamental physics to unexpected applications

Temporal solitons, first predicted in optical fibers by Hasegawa and Tappert in 1973, have had a transformative impact on fiber optics and ultrafast photonics over the past 50 years. Solitons, which result from a precise balance between dispersion and nonlinearity have originally led to major developments in optical communications, including long-distance data transmission. These advances have since expanded into ultrafast laser systems, where soliton dynamics underpin technologies such as mode-locked lasers, frequency comb generation, and pulse compression. The advent of photonic crystal fibers has further broadened the range of soliton applications, enabling the generation of broadband supercontinuum light and facilitating new frontiers in spectroscopy, imaging, and metrology. This talk will review key breakthroughs in fiber soliton research, highlighting their interdisciplinary relevance across fields such as nonlinear dynamics, telecommunications, and optical technologies, while offering perspectives on future applications.

Biography

Goëry Genty is a Full Professor at Tampere University, Finland, where he leads a research group on ultrafast photonics. He obtained his MSc from the Institute of Optics Graduate School (France) and PhD from Aalto University (Finland). Following postdoctoral research in ultrafast optics, he joined Tampere University, where he has since established himself as a leading researcher in the field of nonlinear photonics. His work focuses on supercontinuum generation, nonlinear pulse propagation in optical fibers, and the application of machine learning in photonics. He has authored or co-authored more than 140 papers with several high-impact publications and has been recognized for his contributions to advancing nonlinear fiber optics. He is the director of the Finnish Flags hip for Photonics Research and Innovation and national infrastructure network for light-based technologies, two of the most prestigious programs funded by the Research Council of Finland. He is also the director of the national doctoral education pilot program in Photonics and international MSc program at Tampere University.