The emerging software defined networking (SDN) paradigm separates the data plane from
the control plane and centralizes network control in an SDN controller. Applications interact …

We demonstrate concepts and results of a field trial for a flexible-rate passive optical network
(FLCS-PON), which delivers bitrates up to 100 Gbit/s and allows for adaptations in the …

With the official adoption of the single-wavelength 50G PON standard at the International
Telecommunication Union Study Group 15 (ITU-T SG15) meeting, both industry and …

The Passive Optical Network (PON) has been evolving continuously in terms of architecture
and capacity to keep up with the demand for high-speed Internet access in the access …

Coherent passive optical network (PON) has been proposed to support the next generation
high-speed optical access network owing to the superior receiver sensitivity and thereby the …

We completed world's first field trial of FLCS-PON, which delivers bitrates up to 100 Gbit/s
and allows for flexible line and code rate to match users' channel conditions and optimize …

A coherent transmission methodology for a continuous-variable quantum key distribution
(CV-QKD) system based on quantum-heterodyne measurement through a coherent …

This paper provides an overview of transceiver technologies to be used for current and next-
generation passive optical networks (PONs). The uninterrupted scaling of PONs to higher …

FLCS-PON is a concept of a flexible passive optical network (PON), where the modulation
and coding parameters of the downstream signal, consisting of modulation order, code rate …

We investigated modulation schemes for realizing flexible line-rate PON. The flexibility can
be used to optimize PON resource usage. We considered cases based on experimental …