Herein, an attention-grabbing and up-to-date review related to major multiplexing
techniques is presented which includes wavelength division multiplexing (WDM) …

Lightwave communications is a necessity for the information age. Optical links provide
enormous bandwidth, and the optical fiber is the only medium that can meet the modern …

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 …

Mode-division multiplexing (MDM) using few-mode fibers (FMFs) appears as a promising
technology to increase fiber capacity by a few orders of magnitude and sustain the traffic …

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

Multicore fibers and few-mode fibers have potential application in realizing dense-space-
division multiplexing systems. However, there are some tradeoff requirements for designing …

We report the optimization of a few-mode fiber, adapted to multiple-input multiple-output
mode division multiplexing, that supports 9 LP modes (15 spatial modes). The fiber is …

In this paper, we review recent progress on space division multiplexed (SDM) transmission
and our proposal of dense SDM (DSDM) with more than 30 spatial channels toward …

Coupling mechanisms and design issues in multi-core fibers (MCFs) for space division
multiplexing are described in this paper. For uncoupled MCFs, a design procedure that …

We describe the design and characterization of a heterogeneous 36-core, three-mode fiber
with three core types. Intercore crosstalk for LP_11 modes is estimated to be below− 31 dB …