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Reference : UMR8523-ABDTAK-001
Workplace : VILLENEUVE D ASCQ
Date of publication : Monday, January 13, 2020
Type of Contract : FTC Scientist
Contract Period : 12 months
Expected date of employment : 10 February 2020
Proportion of work : Full time
Remuneration : 2 643,22 € Gross salary / Month
Desired level of education : PhD
Experience required : Indifferent
In this project, it is prosed the study of dynamics in a nonlinear optical system. In particular, we focus on the study of modulation instabilities leading to frequency combs in fiber cavities and the transitions to a complex nonlinear dynamic where rogue waves can form. The candidate will be in charge of the characterization of the transitions between self-organized structures and complex dynamics including spatiotemporal and turbulent chaos regimes. He will also be required to develop analytical studies and efficient numerical codes to understand these complex phenomena.
- Modeling of linear and nonlinear effects to describe the propagation of laser pulses in nonlinear fiber cavities.
- Perform linear stability analysis of the modulation instability type at the origin of the formation of simple and/or multiple frequencies combs.
- Perform efficient scientific programs allowing the integration of analytical models.
- Carry out an in-depth study, both analytical and numerical, for characterizing physical phenomena leading to complex solutions in a highly non-linear regime.
- Determine the transition thresholds between regular solutions (frequency combs, solitons) and chaotic ones (rogue waves).
- The tasks described above constitute main tasks but are carried out with members of the Complex Systems Dynamics Team (Dysco).
- Knowledge and skills of non-linear dynamics.
- Knowledge and know-how in nonlinear optics
- Mastery of numerical methods
- expertise of fiber optic systems
- Knowledge of the mathematical tools of bifurcation theory in in dynamical systems.
- Follow the seminars of the Dysco Team and the Phlam laboratory
The candidate will be hosted at the laboratory PhLAM located at the physics department, P5 Building in the city of Villeneuve d'Ascq (near Lille). The Phlam comprises around 60 researchers plus technical and administrative services, PhD students and post-doctoral researchers which leads to around 120 people. The candidate will conduct his research within the Complex Systems Dynamic Team (Dysco), one of five teams that form the PhLAM laboratory. He will also be involved in close collaboration between the Dysco team and the Photonics Team.
Constraints and risks
No special constraints. Work is mainly in modeling and numerical simulations.
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