In recent years, many groups and institutions have been committed to the research of integrated quantum photonic circuit technologies, which key components are waveguide coupled single photon sources. this study, we propose an on-chip waveguide-coupled source that is easily implemented as directly made from dot membrane. order scatter light out plane into detection apparatus, grating output cou...

Abstract We developed a novel terahertz-wave detector fabricated on SiC platform implementing an InP/InGaAs Fermi-level managed barrier (FMB) diode. The FMB diode epi-layers were transferred substrate, and waveguide coupler filters monolithically integrated with Then, the chip was assembled in fundamental mixer module WR-3 rectangular-waveguide-input port. It exhibited minimum noise equivalent ...

We demonstrate a novel integrated silicon and ultra-low-loss Si3N4 waveguide platform. Coupling between layers is achieved with (0.4 ± 0.2) dB of loss per transition and a 20 nm 3-dB bandwidth for one tapered coupler design and with (0.8 ± 0.2) dB of loss per transition and a 100 nm 3-dB bandwidth for another. The minimum propagation loss measured in the ultra-low-loss waveguides is 1.2 dB/m in...

A high-efficiency waveguide-to-fiber grating coupler for silicon-on-insulator waveguides was designed. Perfectly vertical fiber coupling is achieved by using an asymmetric grating structure to suppress the second-order Bragg reflection from the grating. The ability to use a perfectly vertical positioned optical fiber simplifies the packaging of the photonic integrated circuit. A coupling effici...

This paper describes the modeling and design of a novel Electro-Absorption Modulator (EAM) based on a Multi-Mode Interference (MMI) waveguide that utilizes the combination of optical absorption and mode interference effects to improve the extinction ratio of the EAM. In addition, modeling and design of an Evanescent Coupler based EAM with improved performance based on a similar dual extinction ...