As most integrated optics platforms, silicon offers only a fixed set of material refractive
indices for designing devices. The ability of sub-wavelength patterned structures to …

We propose an ultra-broadband multimode interference (MMI) coupler with a wavelength
range exceeding the O, E, S, C, L and U optical communication bands. For the first time, the …

We report a stationary Fourier-transform spectrometer chip implemented in silicon
microphotonic waveguides. The device comprises an array of 32 Mach–Zehnder …

We report on two edge-coupling and power splitting devices for hybrid integration of III-V
lasers with sub-micrometric silicon-on-insulator waveguides. The proposed devices relax …

We investigate the waveguide dispersion of subwavelength structures, and propose that the
waveguide dispersion can be reduced by reducing the period of subwavelength structures …

A planar waveguide Fourier‐transform spectrometer with densely arrayed Mach‐Zehnder
interferometers is demonstrated. Subwavelength gratings are used to produce an optical …

Multimode interference couplers (MMIs) are fundamental building blocks in photonic
integrated circuits. Here it is experimentally demonstrated, for the first time, a two‐fold length …

In this contribution we present two recent advanced applications of our Fourier-based modal
methods, specifically an aperiodic rigorous coupled wave analysis and a special bi …

Subwavelength grating (SWG) waveguides offer the freedom of (effective) refractive index
variation in the design of integrated optical components and devices in silicon-on-insulator …

Two dimensional photonic crystals (PhC) consist of spatially periodic dielectric medium.
They allow optical control and manipulation of light propagation. Photonic crystals with …