Increasing incidents of cyber attacks and evolution of quantum computing poses challenges
to secure existing information and communication technologies infrastructure. In recent …

In the last twenty years, optical networks have witnessed recurrent changes in their
management and control architecture. In this paper, we present a historical timeline and a …

Band division multiplexing technology is a promising medium-term transitional solution to
deal with the traffic flood, by leveraging the existing optical fiber transmission infrastructure …

Recently, multi-band elastic optical networks (MB-EONs) have been introduced to increase
the transmission capacity of optical networks by expanding the transmission frequency …

OpenConfig and OpenROADM are emerging as the most relevant initiatives to support
partial disaggregation, in which the optical line system is provided by a single vendor while …

We investigate cost-efficient upgrade strategies for capacity enhancement in optical
backbone networks enabled by C+ L-band optical line systems. A multi-period strategy for …

The recently created ITU-T Focus Group Network 2030 is leading network operators to
identify the requirements and use cases that networks are expected to fulfill for the short …

Filterless optical networks (FONs) as an economical solution use passive couplers/splitters
rather than expensive active filter devices. In this way, after intermediate and destination …

Fiber cut events reduce the capacity of wide-area networks (WANs) by several Tbps. In this
paper, we revive the lost capacity by reconfiguring the wavelengths from cut fibers into …

Space division multiplexing (SDM) and band division multiplexing (BDM) are considered
promising technologies to increase the capacity of optical transport networks. The …