This paper reviews the status of research into elastic optical networks and flexgrid,
illustrating the benefits of new flexible technologies to allow higher network capacities and …

Intensity modulation with direct detection (IM-DD) dominates the commercial short-reach
optical communications. However, when upgrading the data-rate distance product to 1000 …

Terabit/s super-channels are likely to become the standard for next-generation optical
networks and optical interconnects. A particularly promising approach exploits optical …

Conventional elastic optical networking, EON, uses elasticity in two domains, time and
frequency, to optimize utilization of optical network resources in the presence of fluctuating …

Empowered by multirate transmission and bandwidth-variable switching technology, elastic
optical networks (EONs) enhance spectrum utilization efficiency and increase network …

With the introduction of Nyquist pulse shaping, it is possible to transmit a channel in a
spectral window close to its baud rate. To increase the overall network spectral efficiency …

Time–frequency packing (TFP) transmission provides the highest achievable spectral
efficiency with a constrained symbol alphabet and detector complexity. In this paper, the …

Optical WDM backbone networks based on fixed spectrum grid have limitations such as low
spectrum utilization and rigidity in provisioning for heterogeneous rates. Flexible-grid …

In this work, Nyquist pulse-shaping technology is exploited for future implementations of
optical access networks. The paper first presents technical issues regarding digital …

This paper aims to review the status of standardization activities on the black link (BL) and
corresponding alien wavelength concepts. It discusses experimental work on filterless …