In the evolution of optical networks, spectral efficiency (SE) enhancement has been the most
cost-efficient and thus the main driver for capacity increase for decades. As a result, the …

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 …

Wavelength-division multiplexing (WDM) has historically enabled the increase in the
capacity of optical systems by progressively populating the existing optical bandwidth of …

The ever increasing capacity demand on optical networks and the slowdown of improving
spectral efficiency lead to the solution of utilizing more wavelength band in existing optical …

A significant part of optical-fiber capacity can be tapped now that optical amplifiers can boost
many high-speed channels simultaneously. The erbium-doped optical fiber amplifier …

Telecommunication networks are becoming the central linking institution of the Fourth
Industrial Revolution. To cope with the associated capacity and connectivity challenges …

Celebrating the 20^ th anniversary of Optics Express, this paper reviews the evolution of
optical fiber communication systems, and through a look at the previous 20 years attempts to …

We report on the use of semiconductor optical amplifiers (SOAs) to extend the optical
bandwidth of next generation optical systems to 100 nm and beyond. After discussing the …

In this work we detail the strategies adopted in the European research project IDEALIST to
overcome the predicted data plane capacity crunch in optical networks. In order for core and …

Researchers are within a factor of 2 or so from realizing the maximum practical transmission
capacity of conventional single-mode fibre transmission technology. It is therefore timely to …