To effectively operate multivendor disaggregated networks, the performance of the physical
layer needs to be assessed by a quality-of transmission estimator (QoT-E) delivering quick …

Optical wideband communication systems aim at transmitting over several, if not all, of the
low-loss windows of single-mode fibre, ie the O-, E-, S-, C-, and L-band. Recently, there has …

The GN-model of fiber non-linearity has had quite substantial success in modern optical
telecommunications networks as a design and management tool. A version of it, capable of …

Based on fundamental software-defined networking principles, disaggregated solutions
have recently been proposed for optical transport networks. The first solution of such type …

In transport networks, each generation of optical line interfaces brings the prospect of even
higher capacity and further reductions in the cost per bit transported. Currently deployed line …

To reduce network infrastructure cost, network operators want to integrate interoperable and
open transponders, since these transponders allow application of the latest technologies …

Gaussian-noise model analysis reveals that hierarchical WDM/SDM networks significantky
expand the optical reach for spatially-bypassed optical channels up to 2.5 fold, while …

Predeployment of regenerators in a selected subset of network nodes allows service
providers to achieve rapid provisioning of traffic demands, high utilization, and reduced …

This paper describes a SDN-based solution that, by leveraging and coordinating many
functionalities that reside at both WDM and Ethernet layers, orchestrates network resources …

We investigate the viability of hybrid fiber amplifiers (HFA) and advanced digital signal
processing (DSP)-based transceivers in translucent optical networks. We focus on the …