ESEO – MAÅGM Cifre Thesis
– Listening to the Earth… with light
Measuring micro-vibrations in the ground is crucial for understanding earthquakes, volcanoes, or ambient seismic noise.
But in certain extreme environments, electronics become fragile.
This thesis develops an optical fiber seismic sensor (interferometry) and, above all, the algorithms that give it its precision:
- Modeling the sensor (mechanical + optical) to understand its actual response
- Automatically identifying parameters that drift (temperature, aging, installation, etc.)
- Invert/correct the signal to recover ground movement, even at very low frequencies
- Ensure metrological quality: correct without inventing or distorting physical reality
Objective: stable, robust, and field-ready measurement, from Earth… to planetary missions.
PhD Student : Ilyes DADDI HAMMOU
Involved Researchers : Sébastien MÉNIGOT, Mathieu FEUILLOY, Guilhem PAGÈS
