Reconfigurable Optical Add-Drop Multiplexer Using Microring Resonators

摘要

We report a reconfigurable four-channel optical add-drop multiplexer for use in access networks. The optical add-drop multiplexer (OADM) is based on vertically coupled thermally tunable Si_(3)N_(4)-SiO_(2) microring resonators (MRs) and has been realized on a footprint of 0.25 mm~(2). Individual MRs in the OADM can be tuned across the full free-spectral range of 4.18 nm and have a 3-dB bandwidth of 50 GHz.