Researcher (M/F) on nonlinear propagation in multimode fibers
New
- Researcher in FTC
- 12 mounth
- Doctorate
This offer is available in English version
This offer is open to people with a document recognizing their status as a disabled worker.
Offer at a glance
The Unit
XLIM
Contract Type
Researcher in FTC
Working hHours
Full Time
Workplace
87060 LIMOGES
Contract Duration
12 mounth
Date of Hire
01/06/2026
Remuneration
Between 3041.58 € and 4668.21 € per month
Apply Application Deadline : 31 March 2026 23:59
Job Description
Missions
The researcher's mission will be to study nonlinear propagation in multimode optical fibers. These fibers may be solid-core or gas- or liquid-filled. Coupled-core fibers will also be used. The researcher will also seek to demonstrate the impact of a high-energy pump wave on a weak wave through cross-modulation. This primarily experimental work will also focus on analyzing the radiation at the fiber output through the development of a modal decomposition system.
Activity
The main activity will be to set up an experimental system for nonlinear propagation in multimode fibers and to perform spatial, spectral, and temporal analyses of the radiation emitted from the fiber. This radiation can be used in experiments to measure linear and nonlinear effects such as:
1) The nonlinear refractive index of the fiber core
2) The intra-fiber disorder
3) The self-focusing process of the pump wave
4) The nonlinear frequency conversion
5) The self-selection of transverse modes
Your Profil
Skills
Skills in hollow core multimode optical fibers and silica-core fibers
Knowledge of multimodal propagation in optical fibers, in second (poling process) - and third-order optical nonlinear effects in silica fibers
Use of high-power laser sources
Proficiency in high-power optical radiation
Knowledge of numerical simulation of nonlinear effects
Knowledge of English
Your Work Environment
This work will be carried out in Limoges at the XLIM UMR 7252 laboratory, within the Photonics research group and the Biophotonics team. This work is proposed within the framework of a European ERC Synergy 2025 project entitled "Multiprobe." The project aims to develop optical fibers enabling the development of a multimodal endoscopic system. This research project is conducted with Italian partners in Rome (Sapienza University, Catholic University of Rome, Gemelli Institute).
Compensation and benefits
Compensation
Between 3041.58 € and 4668.21 € per month
Annual leave and RTT
44 jours
Remote Working practice and compensation
Pratique et indemnisation du TT
Transport
Prise en charge à 75% du coût et forfait mobilité durable jusqu’à 300€
About the offer
| Offer reference | UMR7252-VINCOU-004 |
|---|---|
| CN Section(s) / Research Area | Micro and nanotechnologies, micro and nanosystems, photonics, electronics, electromagnetism, electrical energy |
About the CNRS
The CNRS is a major player in fundamental research on a global scale. The CNRS is the only French organization active in all scientific fields. Its unique position as a multi-specialist allows it to bring together different disciplines to address the most important challenges of the contemporary world, in connection with the actors of change.
Create your alert
Don't miss any opportunity to find the job that's right for you. Register for free and receive new vacancies directly in your mailbox.