Journal Article 2 Active on‐chip terahertz Mach‐Zehnder Interferometer 1 Phase control 1 Review 1 Topological waveguides 1 bound states in the continuum laser 1 on‐chip terahertz topological Mach‐Zehnder Interferometer 1 mehr ... parity-time symmetry lasers 1 photonic crystal lasers 1 photonic topological insulator lasers 1 photonic topological insulators 1 plasmonic lasers 1 terahertz silicon photonics 1 terahertz topological photonic integrated circuits 1 valley photonic crystals 1 weniger ...