Project description
Ultra-stable frequency combs for next-generation metrology
Optical frequency combs are powerful tools that emit light in evenly spaced frequencies, resembling a ruler for measuring light. They have transformed spectroscopy, atomic clocks, astronomy and optical communications. Such combs can be created using fibre resonators – optical fibre loops that produce stable light pulses when driven by a laser. However, these systems are very sensitive to vibrations and thermal fluctuations, which create noise and limit their precision. With the support of the Marie Skłodowska-Curie Actions programme, the FINECOMB project will develop an ultra-stable optical frequency comb using a non-linear fibre resonator. By studying noise dynamics, FINECOMB aims to create stable, low-noise frequency combs for metrology, ensuring the fibre cavity output matches the stability of a reliable optical reference.
Objective
The project FINECOMB (FIber Nonlinear rEsonator for ultra-stable optical frequency COMBs) aims to stabilize the repetition rate and phase of an optical frequency comb generated with a coherently driven fiber resonator, to develop this technology for high-resolution metrology applications.
Optical frequency combs are coherent light sources emitting a broad spectrum of discrete and evenly spaced narrow frequency lines, corresponding in the time domain to a train of optical pulses with a regular repetition rate. They are widely used as optical references and have driven major advances in fields such as high-resolution spectroscopy, optical referencing of atomic clocks, astronomy, and high-capacity optical communications. Nonlinear fiber resonators, typically composed of tens of meters of optical fiber looped back on itself, can generate such frequency combs through the emergence of cavity solitons: non-deforming pulses of light that circulate indefinitely within the resonator when coherently driven by an external continuous-wave laser. By releasing energy at each round trip, a regular pulse train is obtained at the cavity output, generating an optical frequency comb. However, these devices are very sensitive to mechanical vibrations and thermal fluctuations, leading to noisy comb at the output and limiting their use in applications. The aim of FINECOMB is to build an ultra-stable optical frequency comb source based on a nonlinear fiber resonator. It will investigate the noise dynamics of the generated combs and develop solutions to achieve a low-noise frequency comb, with metrological applications as the ultimate goal. The focus will be on transferring the stability of an optical reference to the comb generated by the fiber cavity.
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.
This project's classification has been human-validated.
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.
This project's classification has been human-validated.
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-2025-PF
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.
1050 BRUXELLES
Belgium
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.