353 citations · 547 across the 7 of their papers we have counts for
7 papers
Record Photon Information Efficiency with Optical Clock Transmission and Recovery of 12.5 bits/photon over an Optical Channel with 77 dB Loss
René-Jean Essiambre, Cheng Guo, Sai Kanth Dacha +18
We experimentally demonstrate optical detection at 12.5~bits per incident photon, 9.4~dB higher than the theoretical limit of conventional coherent detection. A single laser transm…
First Transmission of a 12D Format Across 3 Coupled Spatial Modes of a 3-Core Coupled-Core Fiber at a Spectral Efficiency of 4 bits/s/Hz
René-Jean Essiambre, Roland Ryf, Sjoerd van der Heide +10
We demonstrate the first transmission of a new twelve-dimensional modulation format over a three-core coupled-core multicore fiber. The format occupies a single time slot spread ac…
White Gaussian Noise Based Capacity Estimate and Characterization of Fiber-Optic Links
Roland Ryf, John van Weerdenburg, Roberto A. Alvarez-Aguirre +7
We use white Gaussian noise as a test signal for single-mode and multimode transmission links and estimate the link capacity based on a calculation of mutual information. We also e…
Integrated cladding-pumped multi-core, few-mode erbium-doped fibre amplifier for space-division multiplexed communications
H. Chen, C. Jin, B. Huang +9
Space-division multiplexing (SDM), whereby multiple spatial channels in multimode and multicore optical fibers are used to increase the total transmission capacity per fiber, is be…
Achievable Rates of Multidimensional Rotationally Invariant Distributions
Johnny Karout, Rene'-Jean Essiambre, Erik Agrell +1
The maximum achievable rate or mutual informa- tion of multidimensional rotationally invariant distributions in the presence of additive white Gaussian noise is analyzed. A simple…
Nonlinear Propagation in Multimode and Multicore Fibers: Generalization of the Manakov Equations
Sami Mumtaz, René-Jean Essiambre, Govind P. Agrawal
This paper starts by an investigation of nonlinear transmission in space-division multiplexed (SDM) systems using multimode fibers exhibiting a rapidly varying birefringence. A pri…
Calculation of Mutual Information for Partially Coherent Gaussian Channels with Applications to Fiber Optics
Bernhard Goebel, René-Jean Essiambre, Gerhard Kramer +2
The mutual information between a complex-valued channel input and its complex-valued output is decomposed into four parts based on polar coordinates: an amplitude term, a phase ter…