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I am a CNRS Researcher at the FEMTO-ST research institute in Besançon in France and I am working within the nonlinear photonics group in the Optics Department. In our group,  we investigate both theoretically and experimentally fundamental nonlinear optical effects that occur in optical fibers and other tiny optical waveguides (photonic crystal fibers, optical micro and nanofibers, and resonators), with the aim of investigating potential applications to ultrafast signal processing, fiber-based telecommunications, fiber lasers and optical fiber sensors. Our group has broad expertise in nonlinear fiber optics and related fields and we have done many scientific achievements in the fields of broadband fiber-based parametric amplification, pulsed and cw-pumped supercontinuum generation, high-power Raman fiber lasers, passive mode-locking of fiber lasers through dissipative four-wave mixing, and Brillouin light scattering in specialty optical fibers. We co-authored more than 100 publications in scientific journals and as many conference papers.

We are 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 band,
• Design and development of broadband fiber optical parametric amplifiers at 1.5 µm and 1 µm,
• Design and development of ultrafast fiber lasers using novel nonlinear mode-locking techniques,

You may further find detailed informations on these topics in our journal papers. Most of these research topics have been funded by grants from several national and european agencies and industrial partners (European H2020-MSCA-ITN, French research minister, ACI and ANR, LABEX Action, European INTERREG Programme, FEDER, Franche-Comté Region, University of Franche-Comté, PRES, CEA, Alcatel-Lucent). Our group is 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,..).

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.