Making spatial multiplexing a reality

By Peter J. Winzer. Nature Photonics, 2014

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From Scaling Disparities to Integrated Parallelism: A Decathlon for a Decade (2017, background): “as revolutionary as fiber was over copper (and to therefore warrant a complete network infrastructure re-build), that waveguide would have to [129]: immediately support 10 Petabit/s; be scal-”
On-chip mode-division multiplexing switch (2015, background): “In fiber communication, despite the fact that spatial multiplexing has allowed enormous data rates over kilometers of fiber [28–38], its small index contrast Δn ∼ 5 × 10−3 makes coupling between modes rather strong, and therefore, modes are not easily separable and switching is confined only to the ”
Attojoule Optoelectronics for Low-Energy Information Processing and Communications (2016, background): “fiber modes to connect to separate spots or waveguide at the ends of the system, which is an interesting area for novel optics [10]–[12], [149], [150].”
Optical communications using orbital angular momentum beams (2015, methodology): “(PDM), and space-division multiplexing (SDM), respectively [1,2].”
Modeling of Nonlinear Propagation in Space-Division Multiplexed Fiber-Optic Transmission (2016, neutral): “2510511 implementation of space-division multiplexing (SDM) [2] over multi-mode [3]–[7] and multi-core [8]–[11] fiber structures, where the signals transmitted through the individual spatial modes experience various degrees of mixing.”