We report an efficient wavelength conversion via four-wave-mixing in reverse biased silicon-on-isolator p-i-n rib waveguides and demonstrate, for the first time, the conversion of a high-speed optical pseudo-random bit sequence data at 40 Gb/s. Results give a wavelength conversion efficiency of -8.6dB using a 8cm long waveguide with clear open eye on the wavelength converted signal . Conversion...

In this paper, we propose and numerically investigate a new non-reciprocal optical device enabling enhanced TE mode isolation at telecom wavelength, compatible with applications. The principle is based on magnetoplasmonic interaction between garnet waveguide side-coupled gold grating. Grating nanoslits host Fabry–Perot resonances that couple to Surface Plasmon Polaritons excited the interface m...

We report two novel strategies to integrate magneto-optical oxides on oxidized silicon and SOI platforms based on strip-loaded waveguide structures. By using conventional waveguide fabrication and thin film deposition techniques, strip-loaded waveguides for magneto-optical non-reciprocal phase shift (NRPS) applications can be integrated on a silicon platform. As a demonstration, two structures,...

We recently demonstrated a silicon (Si) waveguide-based device that performs mode conversion in only one direction (1). We called this effect nonreciprocal, a term that could be misleading as it implies that our device avoids Lorentz reciprocity. Indeed, either a magnetic or a time-dependent response is needed to convert our device into an optical isolator. An analysis of reciprocity of our asy...

We describe an approach to optical non-reciprocity that exploits the local helicity of evanescent electric fields in axisymmetric resonators. By interfacing an optical cavity to helicity-sensitive transitions, such as Zeeman levels in a quantum dot, light transmission through a waveguide becomes direction-dependent when the state degeneracy is lifted. Using a linearized quantum master equation,...

In a three-guide coupler with multimode central waveguide more than two modes of the entire structure participate in the coupling between the outer waveguides. Using a three mode approximation we found simple conditions for complete power transfer between the outer waveguides: the device length has to match certain multiples of the conventionally defined coupling length. The specific form of th...