Shanghai Research Center for Quantum Sciences

High-power erbium-doped waveguide amplifier by modal manipulation on thin-film lithium niobate

Erbium-doped thin-film lithium niobate waveguide amplifiers have attracted growing interests due to their compatibility with on-chip high-speed electro-optical modulation. Subject to the high coupling and propagation losses the off-chip output powers of such on-chip amplifiers ar...