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 …

Digital signal processing for fiber nonlinearities [Invited] clickable element to expand a topic
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We review probabilistic constellation shaping (PCS), which has been a key enabler for
several recent record-setting optical fiber communications experiments. PCS provides both …

A transmission system with adjustable data rate for single-carrier coherent optical
transmission is proposed, which enables high-speed transmission close to the Shannon …

Different aspects of probabilistic shaping for a multispan optical communication system are
studied. First, a numerical analysis of the additive white Gaussian noise (AWGN) channel …

We implemented a flexible transmission system operating at adjustable data rate and fixed
bandwidth, baudrate, constellation and overhead using probabilistic shaping. We …

In this paper, probabilistic shaping is numerically and experimentally investigated for
increasing the transmission reach of wavelength division multiplexed (WDM) optical …

Distribution matching is a fixed-length invertible mapping from a uniformly distributed bit
sequence to shaped amplitudes and plays an important role in the probabilistic amplitude …

The impact of interchannel stimulated Raman scattering (SRS) on optimization of channel
powers to maximize the minimum channel margin is examined using a discrete Gaussian …

Probabilistic constellation shaping (PCS) has been widely applied to amplified coherent
optical transmissions owing to its shaping gain over the uniform signaling and fine …