112-Gbit/sλ PAM4 Transmission enabled by a Negatively-Chirped InP-MZ Modulator. - Aaron Albores-Mejia; Sjoerd van der Heide; Muhammad Usman Sadiq; Saeed Tahvili; Chigo Okonkwo; Boudewijn Docter (ECOC, 2017)

112 Gbit/s Transmission in a 2D Beam Steering AWG-Based Optical Wireless Communication System. - Fausto Gomez-Agis; Sjoerd van der Heide; Chigo M. Okonkwo; Eduward Tangdiongga; Antonius M. J. Koonen (ECOC, 2017)

112-Gbit/s Single Side-Band PAM-4 Transmission over Inter-DCI Distances Without DCF Enabled by Low-complexity DSP. - Sjoerd van der Heide; Aaron Albores-Mejia; Fausto Gomez-Agis; Boudewijn Docter; Chigo Okonkwo (ECOC, 2017)

Single Carrier 1 Tbit/s Mode-Multiplexed Transmission Over Graded-Index 50µm Core Multi-Mode Fiber Employing Kramers-Kronig Receivers. - Sjoerd van der Heide; John van Weerdenburg; Marianne Bigot-Astruc; Adrian Amezcua Correa; Jose Antonio-Lopez; Juan Carlos Alvarado-Zacarias; Huug de Waardt; Ton Koonen; Pierre Sillard; Rodrigo Amezcua Correa; Chigo Okonkwo (ECOC, 2018)

Experimental Validation of a Channel Estimation Algorithm for Transmitter-side Digital Pre-compensation Filters. - Sjoerd van der Heide; Ton Koonen; Chigo Okonkwo (OFC, 2018)

First Experimental Verification of Improved Decoding of Staircase Codes using Marked Bits. - Bin Chen 006; Yi Lei; Sjoerd van der Heide; John van Weerdenburg; Alex Alvarado; Chigo Okonkwo (OFC, 2019)

First Experimental Demonstration of Probabilistic Enumerative Sphere Shaping in Optical Fiber Communications. - Sebastiaan Goossens; Sjoerd van der Heide; Menno van den Hout; Abdelkerim Amari; Yunus Can Gültekin; Olga Vassilieva; Inwoong Kim; Tadashi Ikeuchi; Frans M. J. Willems; Alex Alvarado; Chigo Okonkwo (OECC/PSC, 2019)

11, 700 km Transmission at 4.8 bit/4D-sym via Four-dimensional Geometrically-shaped Polarization-Ring-Switching Modulation. - Sjoerd van der Heide; Bin Chen 006; Menno van den Hout; Gabriele Liga; Ton Koonen; Hartmut Hafermann; Alex Alvarado; Chigo Okonkwo (OECC/PSC, 2019)

30% Reach Increase via Low-complexity Hybrid HD/SD FEC and Nonlinearity-tolerant 4D Modulation. - Gabriele Liga; Bin Chen 006; Sjoerd van der Heide; Alireza Sheikh; Menno van den Hout; Chigo Okonkwo; Alex Alvarado (CoRR, 2019)

Exploiting Angular Multiplexing for Polarization-diversity in Off-axis Digital Holography. - Sjoerd van der Heide; Rutger van Anrooij; Menno van den Hout; Nicolas K. Fontaine; Roland Ryf; Haoshuo Chen; Mikael Mazur; Jose Enrique Antonio-Lopez; Juan Carlos Alvarado-Zacarias; Ton Koonen; Rodrigo Amezcua Correa; Chigo Okonkwo (ECOC, 2020)

Real-time, Software-Defined, GPU-Based Receiver Field Trial. - Sjoerd van der Heide; Ruben S. Luis; Benjamin J. Puttnam; Georg Rademacher; Ton Koonen; Satoshi Shinada; Yoshinari Awaji; Chigo Okonkwo; Hideaki Furukawa (ECOC, 2020)

1 Tbit/s/λ Transmission Over a 130 km Link Consisting of Graded-Index 50µm Core Multi-Mode Fiber and 6LP Few-Mode Fiber. - Menno van den Hout; Sjoerd van der Heide; John van Weerdenburg; Marianne Bigot-Astruc; Adrian Amezcua Correa; Jose Enrique Antonio-Lopez; Juan Carlos Alvarado-Zacarias; Pierre Sillard; Rodrigo Amezcua Correa; Chigo Okonkwo (ECOC, 2020)

Experimental validation of MDL emulation and estimation techniques for SDM transmission systems. - Menno van den Hout; Ruby S. B. Ospina; Sjoerd van der Heide; Juan Carlos Alvarado-Zacarias; Jose Enrique Antonio-Lopez; Marianne Bigot-Astruc; Adrian Amezcua Correa; Pierre Sillard; Rodrigo Amezcua Correa; Darli A. A. Mello; Chigo Okonkwo (ECOC, 2020)

Assembly and Characterization of a Multimode EDFA using Digital Holography. - Juan Carlos Alvarado-Zacarias; Nicolas K. Fontaine; Roland Ryf; Haoshuo Chen; Sjoerd van der Heide; Jose Enrique Antonio-Lopez; Steffen Wittek; Guifang Li; Chigo Okonkwo; Marianne Bigot-Astruc; Adrian Amezcua Correa; Pierre Sillard; et al. (OFC, 2020)

First Transmission of a 12D Format Across Three Coupled Spatial Modes of a 3-Core Coupled-Core Fiber at 4 bits/s/Hz. - René-Jean Essiambre; Roland Ryf; Sjoerd van der Heide; Juan I. Bonetti; Hanzi Huang; Murali S. Kodialam; Francisco Javier García Gómez; Ellsworth C. Burrows; Juan Carlos Alvarado-Zacarias; Rodrigo Amezcua Correa; Xi Chen 018; Nicolas K. Fontaine; et al. (OFC, 2020)

Low-Loss Low-MDL Core Multiplexer for 3-Core Coupled-Core Multi-Core Fiber. - Sjoerd van der Heide; Juan Carlos Alvarado-Zacarias; Nicolas K. Fontaine; Roland Ryf; Haoshuo Chen; Rodrigo Amezcua Correa; Ton Koonen; Chigo Okonkwo (OFC, 2020)

172 Tb/s C+L Band Transmission over 2040 km Strongly Coupled 3-Core Fiber. - Georg Rademacher; Ruben S. Luís; Benjamin J. Puttnam; Roland Ryf; Sjoerd van der Heide; Tobias A. Eriksson; Nicolas K. Fontaine; Haoshuo Chen; René-Jean Essiambre; Yoshinari Awaji; Hideaki Furukawa; Naoya Wada (OFC, 2020)

Distributed Supermode Coupling Measurements in Multi-Core Optical Fibers. - Riccardo Veronese; Juan Carlos Alvarado-Zacarias; Sjoerd van der Heide; Rodrigo Amezcua Correa; Haoshuo Chen; Roland Ryf; Nicolas K. Fontaine; Marco Santagiustina; Andrea Galtarossa; Luca Palmieri 001 (OFC, 2020)

Analysis and Experimental Demonstration of Orthant-Symmetric Four-dimensional 7 bit/4D-sym Modulation for Optical Fiber Communication. - Bin Chen 006; Alex Alvarado; Sjoerd van der Heide; Menno van den Hout; Hartmut Hafermann; Chigo Okonkwo (CoRR, 2020)

Extending White Gaussian Noise Capacity Estimation Method with Probabilistic Constellation Shaping. - Menno van den Hout; Sjoerd van der Heide; Ali Mefleh; Chigo Okonkwo (ECOC, 2021)

Fibre device estimation techniques for SDM transmission. - Chigo Okonkwo; Menno van den Hout; Sjoerd van der Heide; John van Weerdenburg (ECOC, 2021)

10, 000 km Straight-line Transmission using a Real-time Software-defined GPU-Based Receiver. - Sjoerd van der Heide; Ruben S. Luis; Benjamin J. Puttnam; Georg Rademacher; Ton Koonen; Satoshi Shinada; Yoshinari Awaji; Hideaki Furukawa; Chigo Okonkwo (OFC, 2021)

Kramers-Kronig Receiver Combined With Digital Resolution Enhancer. - Menno van den Hout; Sjoerd van der Heide; Chigo Okonkwo (OFC, 2021)

Neural-network-based MDG and Optical SNR Estimation in SDM Transmission. - Ruby S. B. Ospina; Menno van den Hout; Sjoerd van der Heide; Chigo Okonkwo; Darli A. A. Mello (OFC, 2021)

High Capacity and Long-Haul Transmission with Space-Division Multiplexing. - Georg Rademacher; Ruben S. Luís; Benjamin J. Puttnam; Roland Ryf; Sjoerd van der Heide; Tobias A. Eriksson; Nicolas K. Fontaine; Haoshuo Chen; René-Jean Essiambre; Yoshinari Awaji; Hideaki Furukawa (OFC, 2021)

Optical Field Characterization using Off-axis Digital Holography. - Sjoerd van der Heide; Bram van Esch; Menno van den Hout; Thomas D. Bradley; Amado M. Velazquez-Benitez; Nicolas K. Fontaine; Roland Ryf; Haoshuo Chen; Mikael Mazur; Jose Enrique Antonio-López; Juan Carlos Alvarado-Zacarias; Rodrigo Amezcua Correa; et al. (OFC, 2022)

Real-time transmission using a GPU-based Kramers-Kronig coherent receiver. - Sjoerd van der Heide; Ruben S. Luis; Benjamin J. Puttnam; Georg Rademacher; Ton Koonen; Satoshi Shinada; Yoshinari Awaji; Hideaki Furukawa; Chigo Okonkwo (OECC/PSC, 2022)

Overview of GPU-Based Real-Time Receivers Using Kramers-Kronig Coherent Detection. - Ruben S. Luis; Sjoerd van der Heide; Georg Rademacher; Benjamin J. Puttnam; Chigo Okonkwo; Hideaki Furukawa (OECC/PSC, 2022)

Receiver Noise Stability Calibration for CV-QKD. - Sjoerd van der Heide; João dos Reis Frazão; Aaron Albores-Mejia; Chigo Okonkwo (OFC, 2023)

Co-propagation of Classical and Continuous-variable QKD Signals over a Turbulent Optical Channel with a Real-time QKD Receiver. - João dos Reis Frazão; Vincent van Vliet; Sjoerd van der Heide; Menno van den Hout; Kadir Gümüs; Aaron Albores-Mejia; Boris Skoric; Chigo Okonkwo (OFC, 2024)

Adaptive Reconciliation for Experimental Continuous-Variable Quantum Key Distribution Over a Turbulent Free-Space Optical Channel. - Kadir Gümüs; João dos Reis Frazão; Vincent van Vliet; Sjoerd van der Heide; Menno van den Hout; Aaron Albores-Mejia; Thomas D. Bradley; Chigo Okonkwo (OFC, 2024)