Subwavelength structures such as subwavelength gratings (SWGs) and subwavelength
metamaterials are capable of tailoring the optical properties of materials and controlling the …

We demonstrate a compact high-performance adiabatic 3-dB coupler for the silicon-on-
insulator platform. The refractive index of the gap region between two coupling waveguides …

Various passive photonic integrated devices have been developed successfully with silicon-
on-insulator (SOI) nanowires in the past decade. It is well known that SOI-nanowire …

A compact and high extinction ratio polarization beam splitter using subwavelength grating
(SWG) couplers is proposed and characterized, where the SWG couplers are located …

A polarization beam splitter (PBS) is proposed and realized for silicon photonic integrated
circuits with a 340-nm-thick silicon core layer by introducing an asymmetric directional …

Polarization manipulation is essential in photonic integrated circuits and has numerous
applications in various fields, such as optical communication, nonlinear optics, and quantum …

We propose and demonstrate broadband, entirely mode-evolution-based, polarization
splitter-rotators (PSR) using sub-wavelength grating (SWG) assisted adiabatic waveguides …

We propose and experimentally demonstrate a novel approach to implement a low-loss,
broadband, and compact transverse electric (TE)-pass polarizer on a silicon-on-insulator …

Polarizers have been widely used in various optical systems to reduce polarization cross
talk. The polarizers based on the silicon nanowire waveguide can provide chip-scale device …

Many optical systems require broadband filters with sharp roll-offs for efficiently splitting or
combining light across wide spectra. While free space dichroic filters can provide broadband …