Journal Article 2 topological cavity THz on‐chip cavity 1 THz topological photonic integrated circuits 1 active non‐reciprocity 1 non‐reciprocal critical coupling state 1 on‐chip integrated isolator 1 mehr ... on‐chip terahertz interconnects 1 optothermal control 1 silicon photonics 1 supercoupled cavity 1 terahertz interfacial waveguide 1 terahertz topological isolator 1 terahertz topological photonic integrated circuits 1 topological non‐reciprocity 1 topological waveguide 1 weniger ...