We review the most recent advanced concepts and methods employed in the cutting-edge
spectrally efficient coherent fiber-optic transoceanic transmission systems, such as …

We report on a C+ L-band transoceanic transmission using capacity-approaching
probabilistically-shaped 64QAM. Digital nonlinear compensation and adaptive-rate spatially …

A general theory of nonlinear interactions between signal and amplified spontaneous
emission noise in wavelength division multiplexed fiber-optic coherent transmission systems …

We report on a full C+ L-band erbium-doped fiber amplified (EDFA) submarine transmission
experiment of 178 wavelength-division multiplexed channels of 49-GBd polarization …

Machine Learning (ML) algorithms have shown to complement standard digital signal
processing (DSP) tools in mitigating fiber nonlinearity and improving long-haul transmission …

Probabilistic constellation sha** (PCS), digital nonlinear compensation, and multirate
spatially coupled low-density parity check codes are used to achieve 25.4-Tb/s transmission …

We introduce the concept of the universal virtual lab, an extension to the virtual lab platform
of [Golani et al. 2016], enabling a fast and accurate simulation of wideband nonlinear …

An accurate, closed-form expression to evaluate the nonlinear interference (NLI) noise
power in Nyquist-spaced, coherent optical communication systems using backward-pumped …

A method for reducing the training time of a deep learning based digital backpropagation
(DL-DBP) is presented. The method is based on dividing a link into smaller sections. A …

Recent results on analytical modeling of non-linear interference due to signal propagation in
multi-span optical systems are reviewed, including high-symbol rate and ultra-wideband …