In order to overcome the capacity limitations of current lightwave systems based on the
single-mode optical fiber, massively parallel transmission in the spatial domain [space …

Due to its absorption properties in atmosphere, the mid-infrared (mid-IR) region has gained
interest for its potential to provide high data capacity in free-space optical (FSO) …

Orbital angular momentum (OAM) of light beams with helical phase front, as an alternative
spatial dimension resource of photons, has attracted extensive attention over the past …

The dramatic development in the communication system and sudden acquisition of Internet
has changed the life style. Elastic optical networks have been introduced to deal with the …

Multiband (MB) optical fiber transmission systems can unlock additional capacity in existing
optical fiber infrastructures, enabling them to keep up with the increase in traffic demand …

Signal transmission using counter-propagation nowadays is adopted to enhance resource
utilization in spectrally-spatially elastic optical networks (SS-EONs), where inter-mode and …

Machine learning (ML)-assisted solutions for quality of transmission (QoT) estimation or
classification have received significant attention in recent years. However, due to the …

The problem of automatic modulation format identification (MFI) is one of the main
challenges in adaptive optical systems. In this work, we investigate MFI in super-channel …

We review and introduce key optical innovations that enable scalable and efficient high
capacity optical networks, such as advanced modulation formats, flexible grid, optical …

To cope with the continuous traffic growth, spectral efficiency needs to be enhanced. Ultra-
dense WDM systems, where narrower guard-bands are inserted between wavelength …