UDE , M

In the last decades, there is a high interest in monitoring greenhouse gases emissions from the permafrost thawing, in particular methane and carbon dioxide, to better understand and predict the impacts of the climate change. The existing devices and methods to quantify those gases are either expensive and hard to deploy but can take...

ABSTRACT DROÏD project is intended to develop a distributed optical fibre dosimeter based on Radiation-Induced Attenua-tion (RIA). The RIA will be measured by a high resolution Optical Time Domain Reflectometry (OTDR) technique that allows to locate the irradiated fibre section. The first part of the project focuses on designing a high...

Les transitions des ions Tm 3+ ont un fort potentiel applicatif dans le domaine des fibres optiques amplificatrices. Afin d'améliorer leurs efficacités d'émission dans des fibres à base de silice, la voie explorée repose sur l'encapsulation des ions Tm 3+ dans des nanoparticules. Dans cette communication, nous étudions un procédé de fabrication...