In this paper, we numerically simulate the focusing of a second-order cylindrical vector beam
with a gradient index Mikaelian lens. It is shown that the lens forms a region of the reverse …

Abstract Silicon-on-insulator (SOI) waveguides with different geometries have been
employed to design various integrated optical components. Reducing the bending radius of …

Various photonic integrated components have been implemented by ultra-thin silicon-on-
insulator (SOI) waveguides; therefore, it is desirable to couple ultra-thin SOI waveguides to …

Mode-division multiplexing (MDM) is an emerging large-capacity data communication
technology utilizing orthogonal guiding modes as independent data streams. One of the …

In integrated photonic circuits, silicon-on-insulator waveguides with different geometries
have been employed to realize a variety of components. Therefore, efficient coupling of two …

The absolute instruments like the Maxwell's fisheye (MFE) lens with aberration-free imaging
properties have found interesting applications such as waveguide crossing. The flat …

Multimode waveguide crossings are crucial components for novel mode-division-
multiplexing systems. One of the challenges of multimode waveguide routing in MDM …

Abstract Silicon nitride (Si 3 N 4) planar waveguide platform combined with silicon-on-
insulator (SOI) devices offer a whole new generation of system-on-chip applications …

Reducing the bending radius of low-index-contrast waveguides is essential in reducing the
size of the integrated optical components. A polymeric multimode waveguide bend is …

Low-index contrast waveguides such as silica waveguides are an indispensable part of
passive integrated optical components. Reducing the bending radius of silica waveguides …