Mode and Polarization‐Division Multiplexing Based on Silicon Nitride Loaded Lithium Niobate on Insulator Platform (Laser Photonics Rev. 16(1)/2022)

(De)Multiplexing Technologies In article number 2100529, Yonghui Tian, Arnan Mitchell, Yikai Su, and co-workers experimentally demonstrated mode polarization-division multiplexing on a thin-film lithium niobate insulator (LNOI) platform. By introducing silicon nitride as loading material atop the LNOI photonics chip, devices can be integrated with high-speed electro-optic modulators to achieve high-capacity low-cost photonic circuits suitable for data communication applications, while avoiding direct etching of niobate.