Research Topics

My current research involves the nonlinear interactions between light and matter and their applications - particularly through the use of optical fibers and related tiny waveguides such as photonic crystal fibers, optical nanofibers, and micro-resonators, and their applications to all-optical signal processing for future optical communication systems, fiber lasers, optical fiber sensors, spectroscopy, and metrology.. I am currently working on the following research topics:

• Investigation of optomechanical interactions and Brillouin scattering in optical nanofibers and microstructured fibers
• Development of supercontinuum fiber sources from the ultraviolet to the mid-infrared wavelength range,
• Design and development of ultrafast fiber lasers using novel nonlinear mode-locking techniques,
• Investigation of ultrafast noise dynamics in nonlinear fiber optics and fiber lasers,
• Design and development of ultrafast fiber lasers using novel nonlinear mode-locking techniques,

You may further find detailed informations on these research topics in my journal scientific papers. Most of these research works have been funded by many grants from several national and european agencies and in collaboration with several industrial partners (European H2020-MSCA-ITN, French research minister, ACI and ANR, CNRS, LABEX Action, European INTERREG Programme, FEDER, Bourgogne Franche-Comté Region, University of Franche-Comté, I-site UBFC, EUR UBFC, CEA, Alcatel-Lucent, Leukos Optical Systems, NKT Photonics). I am also working closely on these topics with a number of industrial and academic collaborators in France and abroad (ULB Bruxelles, EPFL, Lausanne, McGill University, Montreal, University of Auckland, NZ, Max Planck Institute, Erlangen, Germany, Tampere University, University of Maryland, USA, DTU Fotonik, Danemark, TUT, Finland).

This image shows a cascaded stimulated Raman scattering in a photonic crystal fiber pumped by a nanosecond microchip laser at 532nm, one of the main nonlinear effects owing to nonlinear light interaction with vibrational states of fused silica molecules.