Abstract: The switching voltage reduction in optical directional coupler switch utilizing alternating Δβ is fully analyzed. It is shown that increasing the number of sections in electrode can reduce ...

Abstract: The optical directional couplers are one of the essential devices in photonic systems. It has many applications such as switches, modulator and de-multiplexer. In this paper, optimisation of ...

Researchers developed a chip-based single-phonon directional coupler that carries out controllable splitting and achieves quantum-level performance. The device could enable microscopic on-chip routers ...