Metro aggregation is one of the fastest growing segments in telecommunications in terms of
data traffic. At the intersection of core and access, where coherent modules compete with …

To exploit the advantages of multimode fiber (MMF)-based transmission and to improve the
overall capacity, transmission of OAM modes over a single wavelength needs to be replaced …

Recently, to cope with the ever-growing traffic volumes and network services in the Internet,
the coherent point-to-multipoint transceivers (P2MP-TRXs) enabled by digital subcarrier …

There is a continuous need to scale optical communication networks' capacity to cope with
the exponential growth of data traffic. Silicon photonics (SiP) retains significant potential as a …

Coherent optical transmission systems using digital sub-carriers are ideal for point-to-multi-
point applications. Many functional blocks are similar to the ones of single-channel …

The horseshoe topology is widely used to realize metro-aggregation networks, since it
provides a natural fit to the hub-and-spoke traffic pattern present in the majority of these …

We report on the first real-time operation of coherent point-to-multipoint in high-speed fiber-
optic communications. The broadcast and aggregation network consists of a 400 Gb/s hub …

Probabilistic constellation shaping (PCS) brings unprecedented flexibility to future optical
networks. However, PCS combined with higher-order modulation formats and higher symbol …

Point-to-multipoint (P2MP) coherent pluggable transceivers leveraging digital subcarrier
multiplexing (DSCM) techniques are gaining momentum among telecommunication …

The tight channel filtering imposed by long cascades of reconfigurable optical add-drop
multiplexers (ROADMs) represents, nowadays, one of the major performance-limiting …