High extinction ratio on-chip pump-rejection filter based on cascaded grating-assisted contra-directional couplers in silicon nitride rib waveguides

Nie, XiaominXiaominNieTurk, NinaNinaTurkLi, YanLuYanLuLiLiu, ZuyangZuyangLiuBaets, RoelRoelBaets2021-10-272021-10-272019-050146-9592https://imec-publications.be/handle/20.500.12860/33663High extinction ratio on-chip pump-rejection filter based on cascaded grating-assisted contra-directional couplers in silicon nitride rib waveguidesJournal articlehttps://doi.org/10.1364/OL.44.002310