Chigo Okonkwo

Orcid: 0000-0002-5716-6728

According to our database1, Chigo Okonkwo authored at least 88 papers between 2008 and 2024.

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Bibliography

2024
Experimental demonstration of a multi-core fiber seeded comb optical network (MCF-SCON).
J. Opt. Commun. Netw., 2024

45.7 Tb/s over 12 053 km Transmission with an All-Multi-Core Recirculating-Loop 4-Core-Fiber System.
Proceedings of the Optical Fiber Communications Conference and Exhibition, 2024

Wideband S, C,+ L-Band Comb Regeneration in Large-Scale Few-Mode MCF Link with Single-Mode Seed Channel.
Proceedings of the Optical Fiber Communications Conference and Exhibition, 2024

Experimental Analysis of Receiver Failure For 19-Core Randomly Coupled Core Fibre Transmission.
Proceedings of the Optical Fiber Communications Conference and Exhibition, 2024

Adaptive Reconciliation for Experimental Continuous-Variable Quantum Key Distribution Over a Turbulent Free-Space Optical Channel.
Proceedings of the Optical Fiber Communications Conference and Exhibition, 2024

Co-propagation of Classical and Continuous-variable QKD Signals over a Turbulent Optical Channel with a Real-time QKD Receiver.
Proceedings of the Optical Fiber Communications Conference and Exhibition, 2024

2023
A Simplified Method for Optimising Geometrically Shaped Constellations of Higher Dimensionality.
CoRR, 2023

Randomly Coupled 19-Core Multi-Core Fiber with Standard Cladding Diameter.
Proceedings of the Optical Fiber Communications Conference and Exhibition, 2023

273.6 Tb/s Transmission Over 1001 km of 15-Mode Fiber Using 16-QAM C-Band Signals.
Proceedings of the Optical Fiber Communications Conference and Exhibition, 2023

Receiver Noise Stability Calibration for CV-QKD.
Proceedings of the Optical Fiber Communications Conference and Exhibition, 2023

2022
Overview of GPU-Based Real-Time Receivers Using Kramers-Kronig Coherent Detection.
Proceedings of the 2022 27th OptoElectronics and Communications Conference (OECC) and 2022 International Conference on Photonics in Switching and Computing (PSC), 2022

Real-time transmission using a GPU-based Kramers-Kronig coherent receiver.
Proceedings of the 2022 27th OptoElectronics and Communications Conference (OECC) and 2022 International Conference on Photonics in Switching and Computing (PSC), 2022

On Optimum Enumerative Sphere Shaping Blocklength at Different Symbol Rates for the Nonlinear Fiber Channel.
Proceedings of the 2022 27th OptoElectronics and Communications Conference (OECC) and 2022 International Conference on Photonics in Switching and Computing (PSC), 2022

Optical Field Characterization using Off-axis Digital Holography.
Proceedings of the Optical Fiber Communications Conference and Exhibition, 2022

Mitigating Nonlinear Interference by Limiting Energy Variations in Sphere Shaping.
Proceedings of the Optical Fiber Communications Conference and Exhibition, 2022

2021
Low-Complexity Geometrical Shaping for 4D Modulation Formats via Amplitude Coding.
CoRR, 2021

Neural-network-based MDG and Optical SNR Estimation in SDM Transmission.
Proceedings of the Optical Fiber Communications Conference and Exhibition, 2021

Kramers-Kronig Receiver Combined With Digital Resolution Enhancer.
Proceedings of the Optical Fiber Communications Conference and Exhibition, 2021

10, 000 km Straight-line Transmission using a Real-time Software-defined GPU-Based Receiver.
Proceedings of the Optical Fiber Communications Conference and Exhibition, 2021

Fibre device estimation techniques for SDM transmission.
Proceedings of the European Conference on Optical Communication, 2021

Extending White Gaussian Noise Capacity Estimation Method with Probabilistic Constellation Shaping.
Proceedings of the European Conference on Optical Communication, 2021

On Kurtosis-limited Enumerative Sphere Shaping for Reach Increase in Single-span Systems.
Proceedings of the European Conference on Optical Communication, 2021

2020
Hard-Decision Coded Modulation for High-Throughput Short-Reach Optical Interconnect.
Entropy, 2020

Analysis and Experimental Demonstration of Orthant-Symmetric Four-dimensional 7 bit/4D-sym Modulation for Optical Fiber Communication.
CoRR, 2020

DSP-Based Mode-Dependent Loss and Gain Estimation in Coupled SDM Transmission.
Proceedings of the Optical Fiber Communications Conference and Exhibition, 2020

Low-Loss Low-MDL Core Multiplexer for 3-Core Coupled-Core Multi-Core Fiber.
Proceedings of the Optical Fiber Communications Conference and Exhibition, 2020

Assembly and Characterization of a Multimode EDFA using Digital Holography.
Proceedings of the Optical Fiber Communications Conference and Exhibition, 2020

Experimental validation of MDL emulation and estimation techniques for SDM transmission systems.
Proceedings of the European Conference on Optical Communications, 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.
Proceedings of the European Conference on Optical Communications, 2020

Real-time, Software-Defined, GPU-Based Receiver Field Trial.
Proceedings of the European Conference on Optical Communications, 2020

Exploiting Angular Multiplexing for Polarization-diversity in Off-axis Digital Holography.
Proceedings of the European Conference on Optical Communications, 2020

Nonlinear Interference Analysis of Probabilistic Shaping vs. 4D Geometrically Shaped Formats.
Proceedings of the European Conference on Optical Communications, 2020

2019
30% Reach Increase via Low-complexity Hybrid HD/SD FEC and Nonlinearity-tolerant 4D Modulation.
CoRR, 2019

Enumerative Sphere Shaping for Rate Adaptation and Reach Increase in WDM Transmission Systems.
CoRR, 2019

Introducing Enumerative Sphere Shaping for Optical Communication Systems with Short Blocklengths.
CoRR, 2019

Polarization-ring-switching for nonlinearity-tolerant geometrically-shaped four-dimensional formats maximizing generalized mutual information.
CoRR, 2019

11, 700 km Transmission at 4.8 bit/4D-sym via Four-dimensional Geometrically-shaped Polarization-Ring-Switching Modulation.
Proceedings of the 2019 24th OptoElectronics and Communications Conference (OECC) and 2019 International Conference on Photonics in Switching and Computing (PSC), 2019

First Experimental Demonstration of Probabilistic Enumerative Sphere Shaping in Optical Fiber Communications.
Proceedings of the 2019 24th OptoElectronics and Communications Conference (OECC) and 2019 International Conference on Photonics in Switching and Computing (PSC), 2019

Chromatic Dispersion Analysis and Compensation in a Large Core-Count Few-Mode Multi-Core Fiber Based on Optical Vector Network Analysis.
Proceedings of the Optical Fiber Communications Conference and Exhibition, 2019

Physical-Layer Confidentiality by Chaotic Encoding in Radio-Over-Fiber Systems.
Proceedings of the Optical Fiber Communications Conference and Exhibition, 2019

First Experimental Verification of Improved Decoding of Staircase Codes using Marked Bits.
Proceedings of the Optical Fiber Communications Conference and Exhibition, 2019

Quantum Data Encryption as a Service on Demand: Eindhoven QKD Network Testbed.
Proceedings of the 21st International Conference on Transparent Optical Networks, 2019

W-Band Heterodyne Wireless System with 2.3 GHz Intermediate Frequency Driven Entirely by ErAs: In(Al)GaAs Photoconductors.
Proceedings of the 21st International Conference on Transparent Optical Networks, 2019

2018
Mode-Multiplexed 16-QAM Transmission over 2400-km Large-Effective-Area Depressed-Cladding 3-Mode Fiber.
Proceedings of the Optical Fiber Communications Conference and Exposition, 2018

White Gaussian Noise Based Capacity Estimate and Characterization of Fiber-Optic Links.
Proceedings of the Optical Fiber Communications Conference and Exposition, 2018

Experimental Validation of a Channel Estimation Algorithm for Transmitter-side Digital Pre-compensation Filters.
Proceedings of the Optical Fiber Communications Conference and Exposition, 2018

Optical Crosstalk Reduction using Amplified Spontaneous Emission (ASE).
Proceedings of the Optical Fiber Communications Conference and Exposition, 2018

Testing Facilities for End-to-End Test of Vertical Applications Enabled by 5G Networks: Eindhoven 5G Brainport Testbed.
Proceedings of the 2018 20th International Conference on Transparent Optical Networks (ICTON), 2018

Geometrically-shaped 64-point Constellations via Achievable Information Rates.
Proceedings of the 2018 20th International Conference on Transparent Optical Networks (ICTON), 2018

Single Carrier 1 Tbit/s Mode-Multiplexed Transmission Over Graded-Index 50µm Core Multi-Mode Fiber Employing Kramers-Kronig Receivers.
Proceedings of the European Conference on Optical Communication, 2018

Increasing Achievable Information Rates via Geometric Shaping.
Proceedings of the European Conference on Optical Communication, 2018

2017
Spatial pulse position modulation for multi-mode transmission systems.
Proceedings of the Optical Fiber Communications Conference and Exhibition, 2017

138 Tbit/s Transmission over 650 km Graded-Index 6-Mode Fiber.
Proceedings of the European Conference on Optical Communication, 2017

Flexible Data-rate and Reach Transmission Employing Hybrid Modulation and Scrambled Coherent Superposition.
Proceedings of the European Conference on Optical Communication, 2017

112-Gbit/s Single Side-Band PAM-4 Transmission over Inter-DCI Distances Without DCF Enabled by Low-complexity DSP.
Proceedings of the European Conference on Optical Communication, 2017

112 Gbit/s Transmission in a 2D Beam Steering AWG-Based Optical Wireless Communication System.
Proceedings of the European Conference on Optical Communication, 2017

Programmable Vector Mode Multiplexer.
Proceedings of the European Conference on Optical Communication, 2017

112-Gbit/sλ PAM4 Transmission enabled by a Negatively-Chirped InP-MZ Modulator.
Proceedings of the European Conference on Optical Communication, 2017

2016
An Experimental Comparison of Coded Modulation Strategies for 100 Gbit/s Transceivers.
CoRR, 2016

Trellis coded modulation transmission over 40km 6-LP mode fiber.
Proceedings of the Optical Fiber Communications Conference and Exhibition, 2016

10 Spatial mode transmission over 40km 50μm core diameter multimode fiber.
Proceedings of the Optical Fiber Communications Conference and Exhibition, 2016

Digital subcarrier multiplexed hybrid QAM for data-rate flexibility and ROADM filtering tolerance.
Proceedings of the Optical Fiber Communications Conference and Exhibition, 2016

38.4Tb/s transmission of single-carrier serial line-rate 400Gb/s PM-64QAM over 328km for metro and data center interconnect applications.
Proceedings of the Optical Fiber Communications Conference and Exhibition, 2016


Few mode multicore photonic lantern multiplexer.
Proceedings of the Optical Fiber Communications Conference and Exhibition, 2016

2015
Six spatial modes photonic lanterns.
Proceedings of the Optical Fiber Communications Conference and Exhibition, 2015

Long-haul WDM transmission of 1 Tb/s superchannel.
Proceedings of the 17th International Conference on Transparent Optical Networks, 2015

10 Spatial mode transmission over low differential mode group delay fibre employing all-fibre photonic lanterns.
Proceedings of the European Conference on Optical Communication, 2015

112 Gbit/s single-polarization silicon coherent receiver with hybrid-integrated BiCMOS linear TIA.
Proceedings of the European Conference on Optical Communication, 2015

Scaling the fabrication of higher order photonic lanterns using microstructured preforms.
Proceedings of the European Conference on Optical Communication, 2015

Experimental demonstration of 8 state Turbo Trellis coded modulation employing 8 phase shift keying.
Proceedings of the European Conference on Optical Communication, 2015

2014
8.96Tb/s (32×28GBaud×32QAM) transmission over 0.95 km 19 cell hollow-core photonic bandgap fiber.
Proceedings of the Optical Fiber Communications Conference and Exhibition, 2014

6×28GBaud 128-SP-QAM transmission over 41.7 km few-mode fiber with a 6×6 MIMO FDE.
Proceedings of the Optical Fiber Communications Conference and Exhibition, 2014

First experimental demonstration of a time domain multiplexed SDM receiver for MIMO transmission systems.
Proceedings of the Optical Fiber Communications Conference and Exhibition, 2014

The impact of bit-width reduced MIMO equalization for few mode fiber transmission systems.
Proceedings of the European Conference on Optical Communication, 2014

1 Km hole-assisted few-mode multi-core fiber 32QAM WDM transmission.
Proceedings of the European Conference on Optical Communication, 2014

Long-haul terabit transmission (2272km) employing digitally pre-distorted quad-carrier PM-16QAM super-channel.
Proceedings of the European Conference on Optical Communication, 2014

FEC overhead optimization for long-haul transmission of PM-16QAM based 400Gb/s super-channel.
Proceedings of the European Conference on Optical Communication, 2014

Mitigation of filtering cascade penalties using spectral shaping in optical nodes.
Proceedings of the European Conference on Optical Communication, 2014

2013
Cyclic-Linked Flexibility: An Architectural Approach for Reconfigurable Optical WDM-TDM Access Networks.
JOCN, 2013

Employing a single DPLL for joint carrier phase estimation in few-mode fiber transmission.
Proceedings of the 2013 Optical Fiber Communication Conference and Exposition and the National Fiber Optic Engineers Conference (OFC/NFOEC), 2013

30.7 Tb/s (96×320 Gb/s) DP-32QAM transmission over 19-cell Photonic Band Gap Fiber.
Proceedings of the 2013 Optical Fiber Communication Conference and Exposition and the National Fiber Optic Engineers Conference (OFC/NFOEC), 2013

Bi-directional ultra-wideband services over large-core POF-PON based home networks.
Proceedings of the 2013 Optical Fiber Communication Conference and Exposition and the National Fiber Optic Engineers Conference (OFC/NFOEC), 2013

Angle-of-arrival measurement of a microwave signal based on parallel optical delay detector with accuracy monitored.
Proceedings of the 2013 Optical Fiber Communication Conference and Exposition and the National Fiber Optic Engineers Conference (OFC/NFOEC), 2013


2012
Large-core plastic optical fibre based in-home optical networks.
Proceedings of the 16th International Conference on Optical Network Design and Modelling, 2012

2008
Performance analysis of an optical packet switch with shared parametric wavelength converters.
IEEE Commun. Lett., 2008

A control bridge to automate the convergence of Passive Optical Networks and IEEE 802.16 (WiMAX) wireless networks.
Proceedings of the 5th International ICST Conference on Broadband Communications, 2008


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