We develop a framework for estimating the quality of transmission (QoT) of a new lightpath
before it is established, as well as for calculating the expected degradation it will cause to …

This paper presents an alternative derivation of the Gaussian noise (GN) model of the
nonlinear interference (NLI) in strongly dispersive optical systems. The basic idea is to …

Conference title, upper and lower case, bolded, 18 point type, centered Page 1 Deep
Convolutional Neural Network for Network-wide QoT Estimation Pooyan Safari*, Behnam Shariati …

We present a theoretical model that fully supports the recently disclosed generalized droop
formula (GDF) for calculating the signal-to-noise ratio (SNR) of constant-output power (COP) …

This chapter aims to provide a comprehensive picture of the impact of fiber nonlinear effects
on modern coherent wavelength division multiplexing (WDM) systems' performance. First …

We show the extension of the Gaussian Noise model, which describes non-linear
propagation in uncompensated links of multilevel modulation formats, to systems using …

In optical communications, four-dimensional (4D) modulation formats encode information
onto the quadrature components of two arbitrary orthogonal states of polarisation of the …

Raman amplification is a solution for broadband wavelength-division multiplexed (WDM)
systems that require fine and reconfigurable gain tuning. However, as the fiber nonlinearity …

Machine learning (ML)-based methods are being widely explored to predict the quality of
transmission (QoT) of a lightpath. They are expected to reduce the signal-to-noise ratio …

The ultra-low-loss optical fibers becoming available now offer large effective areas with
much better transmission performance than conventional standard single-mode fibers …