Xu Wang

TL;DR: The design, fabrication and measurement of integrated Bragg gratings in a compact single-mode silicon-on-insulator ridge waveguide, and the analysis shows that the Bragg wavelength deviation is mainly caused by the wafer thickness variation.

TL;DR: Half-etched fiber-waveguide grating couplers with sub-wavelength gratings showing high coupling efficiency as well as low back reflections for both transverse electric (TE) and transverse magnetic (TM) modes are demonstrated.

TL;DR: An enhanced Monte Carlo (MC) simulation methodology to predict the impacts of layout-dependent correlated manufacturing variations on the performance of photonics integrated circuits (PICs) is developed and statistical results from the simulations can predict both common-mode and differential-mode variations of the circuit performance.

TL;DR: A perspective on the exciting possibilities offered by the silicon photonics platform in the field of MWP, potentially enabling integration of highly-complex active and passive functionalities with high yield on a single chip, with a particular focus on the use of WBGs as basic building blocks for linear filtering operations.

TL;DR: 4-port, electrically tunable photonic filters using silicon contra-directional couplers (contra-DCs) with uniform and phase-shifted waveguide Bragg gratings are demonstrated, with great potential for applications such as wavelength-division multiplexing networks and optical signal processing.