posted on 2024-10-31, 19:47authored byChen Zhu, Bill Corcoran, Leimeng Zhuang, Jochen Schroeder, Marizio Burla, Willem Beeker, Arne Leinse, Chris Roeloffzen, Arthur Lowery
Adding a ring-resonator-assisted MZI for preprocessing improves the selectivity of ROADMs, enabling cascades of ROADMs to process N-WDM superchannels. We experimentally investigate the N-WDM superchannels performance with high-order QAM after filtered by cascaded enhanced ROADMs.