Multimode waveguide bend is one of the key components for realizing high-density mode-
division multiplexing systems on chip. However, the reported multimode waveguide bends …

In this work, an ultra-sharp multimode waveguide bend (MWB) based on gradient shallowly
etched grooves is proposed and demonstrated. With a bending radius of only 5.6 μm, our …

Current optical communication systems rely almost exclusively on multimode fibres for short-
and medium-haul transmissions, and are now expanding into the long-haul arena. Ultra …

Mode-division multiplexing is a promising and cost-effective way to increase the
communication capability of integrated photonic circuits, for both classical and quantum …

Mode‐division multiplexing (MDM) is attractive to enhance the link capacity of optical
interconnects by using multiple mode‐channels in multimode bus waveguides. As sharp …

A low-loss and low-crosstalk multimode waveguide bend is proposed and demonstrated for
mode-division-multiplexed optical interconnects. The proposed 90°-bend is composed of …

On‐chip mode‐division multiplexing (MDM) can increase the transmission capacity of a
single optical bus waveguide. It is of great significance for the MDM systems to design the …

An ultra-sharp multimode waveguide bend (MWB) based on a multimode waveguide corner-
bend (MWCB) is proposed and realized. With the present MWCB, total internal reflection …

We demonstrate theoretically and experimentally how highly multimodal high index contrast
waveguides with micron-scale cores can be bent, on an ultra-broad band of operation, with …

On‐chip multi‐mode communication has attracted much attention for its potential to greatly
expand the bandwidth of data transmission. However, the application of multi‐mode …