We describe the design of a trained and pilot-aided digital coherent receiver, capable of
detecting a 1 Tb/s superchannel with a single optical front-end. Algorithms for receiver …

We present a low-complexity fully pilot-based digital signal processing (DSP) chain
designed for high spectral efficiency optical transmission systems. We study the …

We describe in detail the recently proposed four-dimensional modulation format family
based on 2-ary amplitude 8-ary phase-shift keying (2A8PSK), supporting spectral …

High-capacity carrier signals with high-order modulation are being considered for data
center interconnection (DCI) applications as they can reduce the cost per bit by decreasing …

We propose an end-to-end deep learning model for phase noise-robust optical
communications. A convolutional embedding layer is integrated with a deep autoencoder for …

Probabilistic constellation shaping is studied and developed for optical phase conjugation
(OPC)-based nonlinearity compensation of Kerr nonlinearities in optical fiber links. The mid …

The fundamental penalty of subcarrier modulation (SCM) with independent subcarrier phase
noise processing is estimated. It is shown that the fundamental signal-to-noise ratio (SNR) …

The performance of pilot-aided joint-channel carrier-phase estimation (CPE) in space-
division multiplexed multicore fiber (MCF) transmission with correlated phase noise is …

Record symbol-rate PDM-256QAM single-carrier transmission over 100km is achieved
using commercially available laser and modulator with only applying compensation for …

Coherent technology inherent with more availabledegrees of freedom is deemed a
competitive solution for nextgeneration ultra-high-speed short-reach optical interconnects …