… arisen where the multimode waveguide crossing is required to … waveguide crossing only
work for the single-mode. Some works have been reported which realize the multimode crossing…

… One of the challenges of multimode waveguide routing in MDM systems is decreasing the …
waveguide crossings. In this article, a square Maxwell’s fish-eye lens as a waveguide crossing …

The Maxwell’s fisheye (MFE) lens, due to its focusing properties, is an interesting candidate
for implementing the crossing of multiple waveguides. The MFE lens is implemented by two …

… of waveguide crossings. In this work, we present the intersections of three and … waveguides
based on polygonal Maxwell's fisheye lens via transformation optics. The designed lenses …

… the implemented crossing with simple and ideal waveguide crossings. We also evaluate
the effect of the GPC structure’s pitch size on the performance of the designed crossing. …

… Intersection of two or more silicon slot waveguides is inevitable in modern optical integrated
… We design a Maxwell’s fisheye lens as the crossing medium for three Si slot waveguides …

… Finally, we review the performance of recent waveguide crossings in the literature. … fisheye
waveguide crossing over those in this section. The Maxwell fisheye waveguide crossing …

… The number of waveguides crossing an intersection increases with the … Maxwell’s fish-eye
(MFE) lens can be used as a multiband crossing medium. In previous designs of waveguide …

… of the circular MFE lens at its … lens as photonic crystal waveguide crossing medium. We also
have truncated the square MFE lens to a cross-shaped lens to squeeze it inside the crossing …

… on silicon-based multimode waveguide crossings. After a brief introduction, … waveguide
crossing schemes such as conventional multimode interference coupler, Maxwell's fisheye lens …