Eight-channel second-order ring resonator based SOI multiplexers/demultiplexers for optical interconnects

We demonstrate two 8×1 silicon ring-based multiplexers for dual stream multiplexing. All resonances were thermo-optically tuned and spaced by 100GHz having >40GHz bandwidth. Error-free performance without significant signal degradation was obtained for two 4-channel streams at 10Gb/s.