We propose and experimentally demonstrate an ultra-compact multimode waveguide
crossing that can process two modes simultaneously. The symmetric Y-junction is …

We propose and experimentally demonstrate a novel ultracompact multimode waveguide
crossing. The compact asymmetric subwavelength Y-junction is introduced to convert the …

We propose and experimentally demonstrate a novel ultracompact dual-mode waveguide
crossing based on subwavelength multimode-interference couplers for a densely integrated …

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

The mode-division-multiplexing (MDM) technology has become an alternative solution to
further increase the link capacity in optical communication systems. Ultralow loss waveguide …

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 …

Multimode waveguide crossings are crucial components for novel mode-division-
multiplexing systems. One of the challenges of multimode waveguide routing in MDM …

Applying mode division multiplexing techniques to a fiber-chip link would greatly increase its
communication bandwidth. However, its implementation is difficult due to the huge higher …

With intensive computation, we analyze in detail butt-coupling between few-mode fibers and
buried channel waveguides and discuss, in particular, the conditions to achieve mode …

We present a mode multiplexer based on vertical directional couplers that are formed by
adiabatic-tapered waveguides. We design and fabricate the device via the micro-fabrication …