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 …

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 …

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 …

The recently reported high spectral efficiency (SE) and high-baud-rate signal transmission
are all based on digital coherent optical communications and digital signal processing …

As 100-Gb/s coherent systems based on polarization-division multiplexed quadrature phase
shift keying (PDM-QPSK), with aggregate wavelength-division multiplexed (WDM) capacities …

Abstract We demonstrate 1.01-Pb/s transmission over 52 km with the highest aggregate
spectral efficiency of 91.4 b/s/Hz by using low-crosstalk one-ring-structured 12-core fiber …

We report record capacity data transmission at 305 Tb/s over 10.1 km, using space division
multiplexing (SDM) with 19 channels. To realize such a large SDM channel number, we …

Silicon photonic grating couplers are demonstrated featuring a perfect vertical coupling and
predicted coupling efficiencies of 87% and 78% with an apodized and a standard periodic …

Recent developments in spatially multiplexed optical communication systems demand a
deeper understanding of mode coupling effects in fibers. Spatial multiplexing is being …