Project description
When light pulls itself in order
High-power light in multimode fibres usually degrades into noisy speckle. On the other hand, beam self-cleaning can spontaneously restore a stable, bell-shaped profile. Despite its potential to revolutionise high-power lasers and medical imaging, the exact physical drivers of this phenomenon remain a subject of debate. Supported by the Marie Skłodowska-Curie Actions programme, the BESCLING project aims to focus on the temporal evolution of beam profiles, which is often overlooked in traditional spatial analysis. Working towards a unified theory of self-cleaning, the project will develop tools to capture simultaneous spatiotemporal dynamics across novel fibre geometries and materials. The goal of transitioning to time-resolved analysis is to provide the foundational physics needed to stabilise and scale next-generation photonic systems.
Objective
The goal of BESCLING is to shed light on the physics of the beam self-cleaning (BSC) effect. This is driven by Kerr nonlinearity and consists of the spontaneous increase of the spatial quality of a multimode beam, which turns from speckles in the linear regime to a bell shape at sufficiently high power. Since its first observation, BSC has attracted great interest, mostly because it allows for improving the performances of state-of-the-art optical fibre technologies; remarkable examples are the power scale-up of fibre lasers and the resolution enhancement of multiphoton imaging devices. Despite these successes, the physical mechanisms behind BSC are still largely debated. Specifically, recent experiments demonstrated that for achieving BSC the temporal beam evolution plays a pivotal role. Whereas the temporal dimension has been often ignored in the investigation of BSC.
Here, I propose a new approach to dig into the physics of BSC. I will build up a holographic mode decomposition tool, which, in addition to retrieving the mode occupation at the fibre output, allows for obtaining information on the beam temporal profile. This will pave the way to a fully spatiotemporal interpretation of BSC, e.g. it will enable the understanding of the simultaneous occurrence of BSC and supercontinuum generation, whose physical interpretation has been largely disregarded, so far. In addition, to survey the generality of BSC, I will explore photonics platforms beyond standard multimode optical fibres like few-mode optical fibres and lossy fibres made of soft glass or polymer. To date, theoretical models do not apply to these types of systems and, from the experimental point of view, only a few observations of BSC have been reported.
To this goal, the Laboratoire Interdisciplinaire Carnot de Bourgogne is the perfect Host Institution since it is the only laboratory in Europe that combines expertise in all aspects of BESCLING, from nonlinear guided optics to special fibre fabrication.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
- natural sciences chemical sciences polymer sciences
- engineering and technology materials engineering amorphous solids
- natural sciences physical sciences optics fibre optics
- natural sciences physical sciences optics laser physics
You need to log in or register to use this function
Keywords
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Programme(s)
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
-
HORIZON.1.2 - Marie Skłodowska-Curie Actions (MSCA)
MAIN PROGRAMME
See all projects funded under this programme
Topic(s)
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Funding Scheme
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
HORIZON-TMA-MSCA-PF-EF - HORIZON TMA MSCA Postdoctoral Fellowships - European Fellowships
See all projects funded under this funding scheme
Call for proposal
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
(opens in new window) HORIZON-MSCA-2024-PF-01
See all projects funded under this callCoordinator
Net EU financial contribution. The sum of money that the participant receives, deducted by the EU contribution to its linked third party. It considers the distribution of the EU financial contribution between direct beneficiaries of the project and other types of participants, like third-party participants.
75794 Paris
France
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.