On-chip mode-manipulation is one of the most important physical fundamentals for many
photonic integrated devices and circuits. In the past years, great progresses have been …

The standard platform for silicon photonics has been ridge or channel waveguides
fabricated on silicon-on-insulator (SOI) wafers. SOI waveguides are so versatile and the …

Due to its excellent electronic and photonic properties, silicon is a good candidate for mid-
infrared optoelectronic devices and systems that can be used in a host of applications. In this …

Multimode silicon photonics is attracting more and more attention because the introduction
of higher-order modes makes it possible to increase the channel number for data …

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 …

Waveguide crossings are an essential component for constructing complex and functional
on-chip photonic networks. Polarization-insensitive waveguide crossings are desired …

If we are to utilize deep-subwavelength plasmonic waveguides in photonic integrated circuit
applications, highly efficient three-dimensional (3D) mode conversion must be achieved …

The emergence of silicon photonics over the past two decades has established silicon as a
preferred substrate platform for photonic integration. While most silicon-based photonic …

For almost 50 years, silicon microelectronics has been the engine of the modern information
revolution. Complex microprocessors, dense memory circuits, and other digital and analog …

Toward mid-infrared (mid-IR) silicon microphotonic circuits, we demonstrate broadband on-
chip silicon structures, such as:(i) straight and bent waveguides and (ii) beam splitters …