Silicon photonics is an enabling technology that provides integrated photonic devices and
systems with low-cost mass manufacturing capability. It has attracted increasing attention in …

Segmenting silicon waveguides at the subwavelength scale produce an equivalent
homogenous material. The geometry of the waveguide segments provides precise control …

Efficient coupling between integrated optical waveguides and optical fibers is essential to
the success of silicon photonics. While many solutions exist, perfectly vertical grating …

Abstract Silicon nitride (Si3N4) waveguides become an appealing choice to realize complex
photonic integrated circuits for applications in telecom/datacom transceivers, sensing, and …

Properties of reflection and transmission spectral filters based on Bragg gratings in
subwavelength grating (SWG) metamaterial waveguides on silicon-on-insulator platform …

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

Efficient fiber-chip coupling interfaces are critically important for integrated photonics. Since
surface gratings diffract optical signals vertically out of the chip, these couplers can be …

Fiber to chip coupling is a critical aspect of any integrated photonic circuit. In terms of ease of
fabrication as well as wafer-scale testability, surface grating couplers are by far the most …

We present a compact silicon-based surface grating antenna design with a high diffraction
efficiency of 89%(-0.5 dB) and directionality of 0.94. The antenna is designed with …

Optical antennas are a fundamental element in optical phased arrays (OPA) and free-space
optical interconnects. An outstanding challenge in optical antenna design lies in achieving …