Zobrazeno 1 - 10
of 526
pro vyhledávání: '"Sylvain, Girard"'
Autor:
Luca Weninger, Adriana Morana, Youcef Ouerdane, Emmanuel Marin, Aziz Boukenter, Sylvain Girard
Publikováno v:
Radiation, Vol 4, Iss 2, Pp 167-182 (2024)
The combination of an ultra-low-loss optical fiber sensitive to ionizing radiation and an optical time domain reflectometer (OTDR) is investigated to explore the feasibility of a single-ended distributed radiation detector. The peculiarity of the tes
Externí odkaz:
https://doaj.org/article/c1ff0da165344c7b81f7c62a7d485371
Autor:
Raphael Florentin, Kilian Le Corre, Thierry Robin, Alexandre Barnini, Roopa Prakash, Giorgio Santarelli, Herve Gilles, Sylvain Girard, Mathieu Laroche
Publikováno v:
IEEE Photonics Journal, Vol 16, Iss 1, Pp 1-6 (2024)
We report on the development of low numerical aperture (NA) Nd-doped large mode area (LMA) fibers with optimized core/clad geometry to achieve high-power laser emission near 915 nm while maintaining near diffraction-limited output beam. The influence
Externí odkaz:
https://doaj.org/article/0dae52f7f4ba498793583c24789b47b0
Autor:
Fiammetta Fricano, Adriana Morana, Martin Roche, Alberto Facchini, Gilles Mélin, Florence Clément, Nicolas Balcon, Julien Mekki, Emmanuel Marin, Youcef Ouerdane, Aziz Boukenter, Thierry Robin, Sylvain Girard
Publikováno v:
Sensors, Vol 24, Iss 17, p 5547 (2024)
We investigated the influence of the photobleaching (PB) effect on the dosimetry performances of a phosphosilicate single-mode optical fiber (core diameter of 6.6 µm) operated at 638 nm, within the framework of the LUMINA project. Different irradiat
Externí odkaz:
https://doaj.org/article/ac9f514a7cb74f3e8d4e1eb4dcdf5f1f
Autor:
Ester Catalano, Raffaele Vallifuoco, Luigi Zeni, Alexis Dufour, Emmanuel Marin, Sylvain Girard, Aldo Minardo
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-8 (2023)
Abstract We demonstrate the possibility to modify the Brillouin scattering properties of a microstructured pure-silica core optical fiber, by infiltrating a liquid inside its holes. In particular, we show that the dependence of the Brillouin frequenc
Externí odkaz:
https://doaj.org/article/f875a1134fc84400ab0950457ffdf34f
Autor:
Arnaud Meyer, Damien Lambert, Adriana Morana, Philippe Paillet, Aziz Boukenter, Sylvain Girard
Publikováno v:
Radiation, Vol 3, Iss 1, Pp 58-74 (2023)
We investigated the influence of modifying the voltage of an X-ray tube with a tungsten anode between 30 kV and 225 kV, and therefore its photon energy spectrum (up to 225 keV), on the Total Ionizing Dose deposited in a single-mode, phosphorus-doped
Externí odkaz:
https://doaj.org/article/018d0158c2d94485b2f86d7a8e6eb27c
Autor:
Jérémy Perrot, Adriana Morana, Emmanuel Marin, Youcef Ouerdane, Aziz Boukenter, Johan Bertrand, Sylvain Girard
Publikováno v:
Photonics, Vol 10, Iss 12, p 1349 (2023)
The combined effects of temperature (from −80 °C to +80 °C) and 100 kV X-ray exposure (up to 108 kGy(SiO2)) on the physical properties of Brillouin scattering and losses in three differently doped silica-based optical fibers, with varying dopant
Externí odkaz:
https://doaj.org/article/72e4de9ddb06416d94490acd5f33ea26
Autor:
Alberto Facchini, Adriana Morana, Luciano Mescia, Cosimo Campanella, Md Mizan Kabir Shuvo, Thierry Robin, Emmanuel Marin, Youcef Ouerdane, Aziz Boukenter, Sylvain Girard
Publikováno v:
Applied Sciences, Vol 13, Iss 20, p 11589 (2023)
Research on optical amplifiers has highlighted how ionizing radiation negatively impacts the performance of erbium-doped fiber amplifiers (EDFAs), through the degradation of their gain. The amplitudes and kinetics of this degradation are mainly expla
Externí odkaz:
https://doaj.org/article/ede50ee6111b40da8ba862e903ec7630
Autor:
Jeoffray Vidalot, Adriana Morana, Hicham El Hamzaoui, Aziz Boukenter, Geraud Bouwmans, Andy Cassez, Bruno Capoen, Youcef Ouerdane, Marc Gaillardin, Mohamed Bouazaoui, Sylvain Girard, Philippe Paillet
Publikováno v:
Radiation, Vol 2, Iss 1, Pp 17-32 (2021)
We investigated in this work the radioluminescence properties of a Ce-doped multimode silica-based optical fiber (core diameter of 50 µm) manufactured by the sol–gel technique when exposed to the high-energy X-rays (~600 keV) of the ORIATRON facil
Externí odkaz:
https://doaj.org/article/05b6cfd2cb914ba78a4a1ef265243b68
Autor:
Sylvain Girard, Adriana Morana, Vincenzo De Michele, Cosimo Campanella, Jeoffray Vidalot, Emmanuel Marin, Aziz Boukenter, Philippe Paillet, Youcef Ouerdane
Publikováno v:
Optical Materials: X, Vol 16, Iss , Pp 100191- (2022)
–We investigated the origins of the steady state X-ray radiation-induced attenuation (RIA) in the visible to infrared spectral domains of an ultra-low loss Telecom-grade single-mode optical fiber. This pure-silica core optical fiber presents very h
Externí odkaz:
https://doaj.org/article/f134bc75679441c2b45274809a7c4dfe
Autor:
Chloé Landreau, Adriana Morana, Nicolas Ponthus, Thomas Le Gall, Jacques Charvin, Sylvain Girard, Emmanuel Marin
Publikováno v:
Photonics, Vol 10, Iss 9, p 996 (2023)
The influence of the bonding procedure (the adhesive type, application procedure, etc.) on the static and dynamic strain transfers of bonded optical fibre sensors is studied theoretically and experimentally at room temperature. The achievable perform
Externí odkaz:
https://doaj.org/article/4373d8d0a0184ac1b18d815eb57010da