A compact waveguide crossing structure with low transmission losses and negligible
crosstalk is demonstrated for silicon-on-insulator circuits. The crossing structure is based on …

A waveguide crossing mechanism based on metamaterial is proposed and numerically
investigated using finite difference in time domain method. The waveguide cross is filled with …

Multiple optical elements utilize crossing of channel optical waveguides. This paper
introduces efficient silicon wire waveguide crossing by means of vertical coupling of tapered …

Waveguide crossings employing tilted MMI structures on silicon wire waveguide are
proposed and demonstrated. Intersecting angle of the two MMI waveguides is optimized for …

Broadband low loss and ultra-low crosstalk waveguide crossings are a crucial component
for photonic integrated circuits to allow a higher integration density of functional components …

A design scheme for silicon-based slot–waveguide crossing using a slot-to-strip mode
converter (at each port) and a strip–multimode–waveguide (SMW) crossing is proposed. The …

A compact integrated 1× 2 wavelength-selective switch (WSS) is demonstrated for which the
structure is designed such that the WSS has no waveguide crossings. By employing a …

We studied the feasibility of an integrated optical circuit consisting of Si-wire waveguides
and silica-based waveguides. In order to realize such a hybrid waveguide optical circuit, we …

A compact silicon-based slot-waveguide crossing composed of a slot-to-strip mode
converter (at each port) and an orthogonal strip multimode waveguide (SMW) is proposed …

Using silicon photonic wires in a silicon-on-insulator structure as an example, we examine
the problem of crossings of thin, high-index-contrast channel waveguides. To ensure high …