Dual-Drive Directional Couplers for Programmable Integrated Photonics
Daniel Pérez, Ana Maria Gutierrez, Erica Sánchez, Prometheus DasMahapatra, J. Capmany · 2019
We propose and experimentally demonstrate the use of directional couplers with an independent phase actuator on each waveguide. We show the configurations that allow the setting of the splitting ratio and the phase in a silicon-nitride platform and their applications in programable photonic integrated circuits.