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 …

We report simultaneous transmission of six spatial and polarization modes, each carrying 40
Gb/s quadrature-phase-shift-keyed channels over 96 km of a low-differential group delay …

In optical fiber, the Orbital Angular Momentum (OAM) mode is a special mode with spatially
infinite orthogonality. It provides a new multiplexing method to the communication capacity …

Mode-division multiplexing over 33-km few-mode fiber is investigated. It is shown that 6× 6
MIMO processing can be used to almost completely compensate for crosstalk and …

Spatial light modulation can be used to address specific fiber modes, as required in mode-
division multiplexed systems. We theoretically compare phase-only spatial light modulation …

We propose an electro-optic mode switch based on an optical waveguide Mach–Zehnder
interferometer fabricated with x-cut lithium niobate by the annealed proton exchange …

Linearly polarized modes were generated from the fundamental LP01 using Lee holograms
displayed on a digital micromirror device. The phase in the holograms was optimized using …

A general silicon mode-converter waveguide that converts a fundamental mode to any
higher-order mode is proposed. Specifically, dielectric substrip waveguides are inserted in …

We present here a method to create spectrally addressable phase masks by encoding
phase profiles into volume Bragg gratings, allowing these holographic elements to be used …

Permanent binary phase masks with planar surfaces and high tolerance to laser radiation
are recorded in the volume of photo-thermo-refractive glass using the contact copying …