On-chip hybrid demultiplexer for mode and coarse wavelength division multiplexing

AlInGaAs Multiple Quantum Well-Integrated Device with Multifunction Light Emission/Detection and Electro-Optic Modulation in the Near-Infrared Range

“…Passive monolithic photonic chips for 1550 nm operation have been developed from single passive optical components into monolithic photonic chips with mature functions based on the silicon-on-insulator (SOI) material system over recent decades. − The first directional waveguide couplers on SOI wafers with excess insertion losses of 1.9 dB for the 1550 nm wavelength were developed in the 1990s . A fully integrated photonic network-on-chip circuit with wavelength-division multiplexing transceivers has recently been realized on an SOI wafer .…”