Mode-division multiplexing (MDM) technology has drawn tremendous attention for its ability
to expand the link capacity within a single-wavelength carrier, paving the way for large-scale …

As a fundamental building block for photonic integrated circuits, waveguide crossing is
playing an essential role for routing the increasingly complex network on chip. Driven by the …

To overcome the capacity crunch of optical communications based on the traditional single-
mode fiber (SMF), different modes in a few-mode fiber (FMF) can be employed for mode …

This paper describes the inverse design of the particle swarm optimization algorithm
combined with the three-dimensional finite-difference time-domain simulation to design a …

On-chip optical interconnect has been widely accepted as a promising technology to realize
future large-scale multiprocessors. Mode-division multiplexing (MDM) provides a new …

We theoretically propose and experimentally demonstrate a novel ultra-compact four-mode
silicon waveguide crossing device based on the asymmetric directional couplers for densely …

Optical power splitters are fundamental devices in on-chip optical systems, enabling
coherent optical modulation through beam splitting and combining. Despite many mature …

Waveguide bend is one of the indispensable fundamental devices in building various
integrated optical circuits. It is commonly used so that its footprints would affect the …

An integrated photonic device for converting on-chip waveguide modes to free-space optical
angular momentum beams is proposed, which is composed of a polarization splitter rotator …

Silicon-based optical switches are integral to on-chip optical interconnects, and mode-
division multiplexing (MDM) technology has enabled modes to function as carriers in …