Silicon photonics defines a significant advancement in the development of highly integrated
devices on a single semiconductor substrate. As a revolutionizing technology it benefits from …

Directional couplers are extensively used devices in integrated optics, but suffer from limited
operational wavelength range. Here we use, for the first time, the dispersive properties of …

We demonstrate a through-etched grating coupler based on subwavelength nanostructure.
The grating consists of arrays of 80 nm× 343 nm rectangular air holes, which can be …

The design and fabrication of an ultracompact silicon-on-insulator polarization converter is
reported. The polarization conversion with an extinction ratio of 16 dB is achieved for a …

We present a tool to aid the design of periodical structures, such as subwavelength grating
(SWG) structures. It is based on the Fourier Eigenmode Expansion Method and includes the …

We demonstrate a novel periodically patterned ring resonator evanescently coupled with a
coupler waveguide (CWG) on a silicon-on-insulator platform. In order to optimize the …

In this paper, athermal silicon waveguides using bridged subwavelength grating (BSWG)
structures are proposed and investigated. The realization of temperature-independent …

We experimentally demonstrate a new type of waveguide multiplexer device designed for
silicon photonics, with a crosstalk level as low as− 35 dB and an operational wavelength …

Surface grating couplers enable efficient coupling of light between optical fibers and planar
waveguide circuits. While traditional grating designs require two etch steps for efficient …

Sub-wavelength gratings (SWG) enable refractive index engineering in silicon waveguides,
with application spanning from fiber-to-chip grating couplers to wavelength demultiplexers …