Silicon photonics is playing a key role in areas as diverse as high-speed optical
communications, neural networks, supercomputing, quantum photonics, and sensing, which …

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 …

dB couplers, which are commonly used in photonic integrated circuits for on-chip information
processing, precision measurement, and quantum computing, face challenges in achieving …

Multimode interference (MMI)-based power splitters are fundamental building blocks for
integrated photonic devices consisting of an interferometer structure. In order to forestall the …

An ultra-compact broadband 2× 2 3 dB power splitter is proposed and demonstrated by
utilizing a subwavelength-grating (SWG)-assisted asymmetric directional coupler. In the …

Silicon photonic (SiP) evanescent-field biosensors aim to combine the information-rich
readouts offered by lab-scale diagnostics, at a significantly lower cost, and with the …

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

We propose and experimentally demonstrate an ultrabroadband and compact 2× 2 3-dB
coupler based on the trapezoidal subwavelength gratings (SWGs). The adiabatic coupling is …

Abstract Silicon nitride (Si3N4) photonic integrated circuits (PICs) are of great interest due to
their extremely low propagation loss and higher integration capabilities. The number of …

We demonstrate adiabatic couplers (ADCs) with design-intended splitting ratios (SRs) for
the silicon-on-insulator (SOI) platform. The operational principle, numerical simulations, and …