Journal Article 4 terahertz topological photonic integrated circuits Active on‐chip terahertz Mach‐Zehnder Interferometer 1 Phase control 1 Silicon photonics 1 Topological waveguides 1 active non‐reciprocity 1 mehr ... demultiplexer 1 heterogeneous interfaces 1 interface topology engineering 1 multiplexer 1 non‐reciprocal critical coupling state 1 on‐chip integrated isolator 1 on‐chip terahertz topological Mach‐Zehnder Interferometer 1 on‐chip topological cavity 1 photonic filter 1 photonic topological insulators 1 radiation loss 1 silicon photonics 1 terahertz 6G to XG wireless communications 1 terahertz interconnects 1 terahertz silicon photonics 1 terahertz topological isolator 1 topological cavity 1 topological non‐reciprocity 1 topological waveguide 1 topological waveguides 1 ultrahigh Q‐factor 1 ultralow‐loss waveguides 1 valley photonic crystals 1 weniger ...