A study of label-free silicon nitride asymmetric double-microring resonators is presented. The use highly accurate 3D vector modal techniques permits an extensive exploration the parameter space defining architecture proposed device in search for optimal geometries and reaching configurations not addressed previous studies that had been limited to symmetrical configurations. Asymmetry, on other...

1 Ringresonator modelling Optical microresonator circuits [1, 2, 3] are considered, consisting of a number of not necessarily identical circular cavities and straight waveguides, with evanescent wave interaction between these elements. A simple configuration with a single cavity and two straight bus waveguides serves as an example to explain the frequency-domain Hybrid analytical/numerical Coup...

We introduce a multi-layer silicon photonic microring resonator filter, fabricated using deposited materials, and transmit up to 12.5-Gb/s error-free data, establishing a novel class of high-performance silicon photonics for advanced photonic NoCs. Furthermore, by leveraging deposited materials, we propose a novel fully-integrated scalable photonic switch architecture for data center networks, ...

We present an experimental technique to characterize backscattering in silicon microring resonators, together with a simple analytical model that reproduces the experimental results. The model can extract all the key parameters of an add-drop-type resonator, which are the loss, both coupling coefficients and backscattering. We show that the backscattering effect strongly affects the resonance s...

We demonstrate photodiodes in deposited polycrystalline silicon at 1550 nm wavelength with 0.15 A/W responsivity, 40 nA dark current, and gigahertz time response. Subband absorption is mediated by defects that are naturally present in the polycrystalline material structure. The material exhibits a moderate absorption coefficient of 6 dB/cm, which allows the same microring resonator device to ac...

An integrated spatially non-blocking 2x2 Banyan switch on silicon on insulator (SOI) is demonstrated. The device relying on thermally switched microring resonators has a footprint of less than 0.02 mm2 and shows negligible channel crosstalk. The presented novel switch topology features a high scalability for application in many-core interconnections for network on-chip architectures. Keywords-c...

A tunable temporal photonic fractional differentiator using a silicon-on-isolator (SOI) electrically tuned microring resonator (MRR) is proposed and experimentally demonstrated. Through changing the voltage applied on the MRR, the fractional order of the photonic differentiator can be continuously tuned. The proposed fractional-order differentiator is demonstrated experimentally with Gaussian p...