Long-haul mode-division multiplexing (MDM) employs adaptive multi-input multi-output
(MIMO) equalization to compensate for modal crosstalk and modal dispersion. MDM …

Next-generation coherent optical systems are geared to employ high-speed digital-to-
analog converters (DAC), allowing for digital preprocessing of the signal and flexible optical …

This tutorial paper reviews advanced modulation techniques that have been proposed in the
literature for the implementation of flexible (or reconfigurable) transceivers, which are …

In this invited contribution, we discuss technology options for bandwidth-variable
transceivers which are key components for the realization of flexible software-defined optical …

Polarization-diverse coherent demodulation allows to compensate large values of
accumulated linear distortion by digital signal processing. In particular, in uncompensated …

Supporting advanced modulation schemes such as 16 quadrature-amplitude modulation
(QAM) in a high-speed transimpedance amplifier (TIA) requires minimizing noise and total …

The different segments of optical transport networks—including metro, regional, and long-
haul—will have to scale to accommodate growing capacity requirements. In metro networks …

Perspectives of Multi-band Optical Communication Systems Page 1 Perspectives of Multi-band
Optical Communication Systems Antonio Napoli∗, Nicola Calabretta†, Johannes K. Fischer‡ …

In this letter, a nonlinear semi-analytical model (NSAM) for simulation of few-mode fiber
transmission is proposed. The NSAM considers the mode mixing arising from the Kerr effect …

A low-complexity and cost-efficient coherent detection-based 100 Gb/s or beyond passive
optical network (PON) has attracted a lot of attention in recent years, as this technology …