… waveguide crossing [24]. For our proposed shape optimization method, the y coordinate
of the optimized structure fluctuates greatly near the waveguide intersection, reducing TE 1 …

… We believe that X-shaped waveguide crossings with more angles are also possible and
both the angles of input ports and output ports can be set separately, which shall be more …

… As an example of a multiport device we demonstrate the optimization of a 90-degree co-planar
waveguide crossing on a silicon-on-insulator (SOI) platform. It has two primary figures of …

… (a) Structure as optimized by the PSO algorithm with r = 43 nm. (b) Logarithmic … the optimized
structure. (c) The electromagnetic power distribution of the optimized waveguide crossing …

… (a) Index distribution of the shape optimized original waveguide in virtual space; (b) index
distribution of the MWB in physical space. This MWB has a uniform core index, which makes …

… with many cascaded waveguide crossings involved, such as … kinds of silicon waveguide
crossing designs (eg, shaped taper, … hot research topics for the waveguide crossing design (eg, …

… 4 Insertion loss and crosstalk for our optimized waveguide crossing with lens-like structures.
… 4 Insertion loss and crosstalk for our optimized waveguide crossing with lens-like structures. …

… In this Letter, we propose waveguide crossings using convex-shaped waveguide tapers on
a scalable silicon photonics technology. The device was designed and demonstrated on thin …

… wave in the waveguide does not match … waveguide crossing medium. We also have truncated
the square MFE lens to a cross-shaped lens to squeeze it inside the crossing waveguides, …

… of optimizing the crosssectional shape of the waveguide to permit the highest possible electric
fields to be sustained in the waveguide … for optimizing the overall waveguide shape and …