High spectrum efficiency and fast restoration speed are highly desired for survivable elastic
optical networks (EONs). In this paper, we take the advantages of failure-independent path …

We report the transmission of time domain hybrid QAM (TDHQ) signals for agile optical
networks. A continuous tradeoff between spectral efficiency and achievable distance by …

In this paper, we present a dynamic energy efficient routing and spectrum assignment
algorithm with regenerator placement (RP) capability for elastic optical networks. In this …

Precise computation of the quality of transmission (QoT) of lightpaths (LPs) in transparent
optical networks has techno-economic importance for any network operator. The QoT metric …

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

We consider an elastic all-optical network, where each node is multicast-capable and does
not support spectrum conversion. In such a network, for a given set of static multicast …

With its agile spectrum management in the optical layer, the flexible-grid elastic optical
network can become a promising physical infrastructure to efficiently support the highly …

We present results from the first demonstration of a fully integrated SDN-controlled
bandwidth-flexible and programmable SDM optical network utilizing sliceable self …

Data transmission with optical fiber is vulnerable to eavesdropping. Moreover, conventional
key distribution technology suffers from increasing computational power and upgraded …

Space division multiplexing enabled elastic optical networks (SDM-EONs) with multi-core
fiber (MCF) have become a promising candidate for future optical transport networks, due to …