Distributed aggregation and reception of a 400-Gb/s net rate superchannel in a single-photodiode 110-GHz Kramers-Kronig receiver

We use a distributed superchannel aggregation scheme to demonstrate ultra-wideband single-photodiode reception based on inherently polarization-aligned Kramers-Kronig carrier generation at the receiver. The impact of polarization rotations is discussed. 400-Gb/s capacity is demonstrated for optimized conditions.