CorpusUL
CorpusUL, Université Laval's Institutional repository preserves and enables easy and open access to scientific literature.
Recent Submissions
Cette étude porte sur l’utilité de l’Échelle de Communication Verbale de Bordeaux (ECVB, Darrigrand & Mazaux, 2000), un instrument destiné à évaluer la communication fonctionnelle d’une personne aphasique dans la vie quotidienne. Cet instrument a été administré à deux reprises auprès de trois personnes aphasiques présentant différents degrés d’atteinte de la compréhension. La première étude avait pour objectifs d’identifi er de possibles limites à l’administration de l’ECVB, ainsi que de...
The radially anisotropic ring-core fiber with cylindrical birefringence is theoretically and numerically investigated as a novel platform for the transmission of vector-vortex beams with unique modal properties. First, we elucidate the parametric conditions where such fiber enables modal substitution in which either the donut-shaped azimuthal TE01 or radial TM01 mode replaces the normal Gaussian-like HE11 mode as the fundamental mode of the waveguide. We also demonstrate that it is possible t...
Heterogeneous integration of materials with a negative thermo-optic coefficient is a simple and efficient way to compensate the strong detrimental thermal dependence of siliconon-insulator devices. Yet, the list of materials that are both amenable for photonics fabrication and exhibit a negative TOC is very short and often requires sacrificing loss performance. In this work, we demonstrate that As₂₀S₈₀ chalcogenide glass thin-films can be used to compensate silicon thermal effects in micr...
Silicon photonics can be used to increase the versatility of wavelength division multiplexing (WDM). Ultra-dense wavelength division multiplexing (uDWDM) shrinks channel spacing between WDM channels to decrease guard bands and increase spectral efficiency. Microring modulators (MRMs) provide a simple solution for uDWDM transmitters - they require no multiplexer/demultiplexer. When used with comb lasers, MRMs provide extremely compact and low power solutions. The spectral efficiency is limited...