Single-mode fiber's physical capacity boundaries will soon be reached; hence, alternative
solutions are much needed to overcome the multiplying and remarkably large bandwidth …

Space-division multiplexing (SDM) uses multiplicity of space channels to increase capacity
for optical communication. It is applicable for optical communication in both free space and …

Optical communication technology has been advancing rapidly for several decades,
supporting our increasingly information-driven society and economy. Much of this progress …

Photonic signal processing is essential in the optical communication and optical computing.
Numerous photonic signal processors have been proposed, but most of them exhibit limited …

In this paper, we review space division multiplexing (SDM) transmission experimental
demonstrations and associated technologies. In past years, SDM achieved high capacity …

10-Mode mode-multiplexed transmission over 125-km single-span multimode fiber Page 1
10-Mode Mode-Multiplexed Transmission over 125-km Single-Span Multimode Fiber R. Ryf(1) …

Spatial division multiplexing in multi-mode fibers allows to largely enhance transmission
capacity compared to single-mode links. Photonic integrated circuits can provide solutions …

We propose a mode-conversion platform based on cascaded long-period waveguide
gratings. We demonstrate two specific devices by cascading a surface-corrugated grating …

After briefly recalling the issue of OAM mode purity in strongly-guiding ring-core fibers, this
paper provides a methodology to calculate the coupling strength between OAM mode …

We report on the multiplexing of 12 spatial and polarization channels and 120 wavelength
channels in the C-band, each carrying 16 quadratic-amplitude modulation symbols at 30 …