Research on space-division multiplexing (SDM) came to prominence in early 2010 being
primarily proposed as a means of multiplying the information-carrying capacity of optical …

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 …

Multicore fibers (MCFs) are expected as a good candidate for overcoming the capacity limit
of a current optical communication system. This paper describes the recent progress on the …

This paper reviews and extends a method for the semi-analytical solution of the coupled
linear differential equations that describe the linear mode coupling arising in few-mode …

Four-mode multiplexing and manipulation technologies are reviewed in the context of space-
division multiplexing (SDM) optical communication systems. These are multiplane light …

Newly developed 125-μm-cladding coupled four-core fibers realized the record-low spatial
mode dispersion (SMD) of 3.14±0.17 ps/√ km over C-band and the ultra-low attenuation of …

In this paper, we describe recent progress in space-division multiplexed (SDM)
transmission, and our proposal and demonstration of dense space-division multiplexing …

Randomly-coupled multi-core fiber (MCF) technology has come to attract lots of attention
because of its strong applicability to long-haul transmission systems. Compared with weakly …

We demonstrate wavelength-and mode-division multiplexed transmission over a fiber re-
circulating loop comprising 50-km of low-DMGD few-mode fiber, and an optimized few-mode …