During the last decade, optical networks have become “smart networks”. Software-defined
networks, software-defined optical networks, and elastic optical networks are some …

Space division multiplexing (SDM), as a potential means of enhancing the capacity of optical
transmission systems, has attracted widespread attention. However, the adoption of SDM …

Estimating the Quality of Transmission (QoT) of the optical signal from source to destination
nodes is the cornerstone of design engineering and service provisioning in optical transport …

The rapidly growing traffic demands in fiber-optical networks require flexibility and accuracy
in configuring lightpaths, for which fast and accurate quality of transmission (QoT) estimation …

A fine-grained flexible frequency grid for elastic optical transmission and space division
multiplexing in conjunction with spectrally efficient modulations is an excellent solution to the …

Efficient resource allocation and management can enhance the capacity of an optical
backbone network. In this context, spectrum retuning via hitless defragmentation has been …

The generalized signal-to-noise ratio (GSNR) is a typical metric for quality of transmission
(QoT), which in wideband systems may not be uniform without adjustment after multi-span …

Multiband elastic optical network (MB-EON) technology can help to sustain exponential
traffic growth in the optical backbone network. However, multiband operation creates high …

We propose a technique for modeling erbium-doped fiber amplifiers (EDFAs) in optical fiber
networks, where the amplifier unit is located at a distant node outside the laboratory. We …

Accurately estimating the quality of transmission (QoT) in modern transport optical networks
has been regarded as one of the most critical factors to reduce the design margins. In recent …