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

We present a new technique allowing the fabrication of large modal count photonic lanterns
for space-division multiplexing applications. We demonstrate mode-selective photonic …

This paper reviews and extends the study of nonlinear performance of few-mode fiber links
operating in all different linear coupling regimes for different mode delay maps. Nonlinear …

Optical vortex beams that carry orbital angular momentum (OAM), also known as OAM
modes, have attracted considerable interest in recent years as they can comprise an …

Supersymmetry (SUSY) has recently emerged as a tool to design unique optical structures
with degenerate spectra. Here, we study several fundamental aspects and variants of one …

We demonstrate a simple and compact all-fiber structure that can generate tunable fiber
modes, including LP 01, LP 11 and OAM modes. The offset splicing between a single-mode …

We report the design of an elliptical-core five-mode group selective photonic lantern (EC-F-
MGS-PL) supporting ten spatial modes over the C-band, whose output fiber is an elliptical …

Single-mode optical fibres now underpin telecommunication systems and have allowed
continuous increases in traffic volume and bandwidth demand whilst simultaneously …

Different fibers generally have different mode characteristics so their connections in many
practical applications often require mode conversion. The feasibility of mode conversion …

Nonlinear performance in spatial multiplexing systems is strongly determined by the
interplay between differential mode delay, linear mode coupling, and Kerr nonlinearity. In …