Objective
The goal of the VIRGO project is the detection of gravitational radiation with a large base interferometric detector.
In order to reach the expected sensitivity, the laser of the interferometer has to be stabilized in frequency and in amplitude. In particular the level of frequency stabilization need very stable references, and is obtained with a two stage system: in the first we compare the laser frequency with the resonance frequency of an ultrastable Fabry-Perot cavity, and in the final stage we compare the laser frequency with the resonance frequency of the long Fabry-Perot arms.
My present application concerns the still open subject of the study and realization of the final step of stabilization, in particular: - The understanding of interactions of this step with the previous stabilizations system of the laser and the interactions with the interferometer "locking".
- The realization of an experiment to test this stabilization system, in which the interferometer is simulated by a small Fabry-Perot cavity or a small interferometer.
- The test of the whole laser system in Orsay, and then on VIRGO site (Italy) in 1998.
This R&D has interactions with the British-Germany interferometric gravitational detector GEO, and with the french company BMI, which participate at the laser construction.
Training content (objective, benefit and expected impact)
Links with industry / industrial relevance (22)
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 physical sciences astronomy observational astronomy gravitational waves
- natural sciences physical sciences optics laser physics
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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.
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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.
Coordinator
91405 ORSAY
France
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