Magneto optical rib waveguide with low refractive index

The phase matching condition is an important requirement for magneto-optical waveguide devices. In this work, the design rules that must be imposed on the geometry and the index of magneto optical rib waveguides to make them behave as phase matched rib waveguides have been simulated. Using film mode matching method, the results show that operation in phase matching is possible under certain circumstances with selected index and geometries. We simulated the performance of such devices and we determined the waveguide dimensions (height, width, and etching depth) and the index that satisfy the phase matching conditions

Theoretical study of a nonlinear fast silicon photoconductive switch

Silicon-On-Insulator waveguide can be used as photoconductor, the light being coupled in the silicon film by a diffraction grating. Nonlinear effects are induced by the photogeneration of electron-hole pairs. This leads to photocurrent variations which are much faster than in linear regime and also much steeper than the incident light pulse. A model is presented which takes into account the refractive index variations arising from both the excess carrier density and the temperature rise induced by carrier recombination and Joule effect. The photocurrent is calculated for various values of the incident light power, incidence angle and pulse duration

Phase matched magnetooptical single mode rib waveguides based on geometrical adjustments

International audienc

Modeling and analysis of birefringence in magneto-optical thin film made by SiO2/ZrO2 doped with ferrite of cobalt

International audienc

Phase matching between two modes TE and TM in a thin layer of rectangular waveguides with optimized dimensions and containment

International audienc

Anisotropy adjustment and thickness of thin layer doped by nanoparticles magnetic for the realization of phase matching between fundamental modes in monomode waveguides

International audienc