40 Gbit/s reconfigurable optical add-drop multiplexer based on microring resonators

A fully pigtailed and packaged ultra-compact reconfigurable 4-channel optical add-drop multiplexer is shown based on SiO/sub 2//Si/sub 3/N/sub 4/ microring resonators. Measurements demonstrate full add/drop capability for 40 Gbit/s datasignal as well as the ability to multicast a channel.