M. Montoliu

TL;DR: 32 WDM channels over 12 spatial and polarization modes of 177 km few-mode fiber at a record spectral efficiency of 32 bit/s/Hz are transmitted and recovered using 12×12 multiple-input multiple-output digital signal processing.

TL;DR: Transmission experiments in few-mode fibers supporting 6 spatialand polarization modes, where low-loss photonic lanterns are used as mode multiplexers are reported, measuring a transmission distance of 900 km for 32 WDM channels with a 100 GHz channel spacing.

TL;DR: A low-complexity frequency-domain equalizer enabling MIMO-SDM transmission is described and it is found that an unconstrained implementation can lead to a considerably reduced complexity with a Q-factor penalty of 0.2 dB.

TL;DR: This work demonstrates compensation of fiber nonlinearities using optical phase conjugation of an 8-channel WDM 32-Gbaud PDM QPSK signal to enable 6000 km transmission over TrueWave fiber.

TL;DR: The first realization of a wavelength-selective switch (WSS) with direct integration of few mode fibers (FMF) is fully described and the effect on data transmission of cascaded passband filtering and MDL build-up is experimentally investigated in detail.