Chigo Okonkwo - RankMe

92 papers C 1Journal 22Unranked 69

Year	Rank	Type	Title / Venue / Authors
2026	J	`jnl`	Compact Continuous-Variable Quantum Key Distribution System Employing Monolithically Integrated Silicon Photonic Transceiver. CoRR Denis M. Fatkhiev, João dos Reis Frazão, Alireza H. Derkani, Kadir Gümüs, Menno van den Hout, Aaron Albores-Mejia, Chigo Okonkwo
2025	—	`conf`	1.02 Petabit/s Transmission Over 1, 808.1 km in a 19-Core Randomly-Coupled Multicore Fiber. OFC Ruben S. Luis, Menno van den Hout, Stefano Gaiani, Besma Kalla, Daniele Orsuti, Y. Goto, Georg Rademacher, Benjamin J. Puttnam, A. Inoue, T. Nagashima, T. Hayashi, Pierpaolo Boffi, Thomas D. Bradley, Chigo Okonkwo, Hideaki Furukawa
2025	—	`conf`	19.2 THz S+C+L Transmission in a Field Deployed, Randomly-Coupled, Multicore Fiber. ECOC Ruben S. Luis, Giammarco Di Sciullo, Menno van den Hout, Robert Emmerich, Nicolas Braig-Christophersen, Q. Wu, Benjamin J. Puttnam, Divya A. Shaji, Fabio Graziosi, Antonio Mecozzi, Andrea Marotta, Colja Schubert, Tetsuya Hayashi, Takuji Nagashima, Chigo Okonkwo, Georg Rademacher, Chiara Lasagni, P. Serena, Antonino Nespola, Cristian Antonelli, Hideaki Furukawa
2025	—	`conf`	430 Tb/S GMI Data Rate Over a Standard G.654 Fiber Using Few-Mode O-Band and Single-Mode ESCL-Band Transmission. ECOC R. S. Luis, Daniele Orsuti, Robert Emmerich, Aleksandr Donodin, Menno van den Hout, Stefano Gaiani, B. Kalla, Lucas Zischler, Robson A. Colares, J. Schneck, Shin Sato, Yuki Kawaguchi, Takemi Hasegawa, Tetsuya Hayashi, Simon Gross, M. Bakovic, Michael J. Withford, Nicolas K. Fontaine, Mikael Mazur, Lauren Dallachiesa, Haoshuo Chen, Georg Rademacher, Roland Ryf, David T. Neilson, Darli A. A. Mello, Cristian Antonelli, S. Turitsyn, Thomas D. Bradley, Pierpaolo Boffi, Chigo Okonkwo, Ronald Freund, Colja Schubert, Hideaki Furukawa
2025	—	`conf`	5.7 Tb/s Transmission Over a 4.6 km Field-Deployed Free-Space Optical Link in Urban Environment. OFC Vincent van Vliet, Menno van den Hout, Kadir Gümüs, Eduward Tangdiongga, Chigo Okonkwo
2025	—	`conf`	568.8 Tbls C+L-8and Transmission Over 5,166 km in a Standard-Cladding Diameter 19-Core Randomly-Coupled Multicore Fiber. ECOC Besma Kalla, Ruben S. Luís, Menno van den Hout, Stefano Gaiani, Daniele Orsuti, Yuta Goto, Georg Rademacher, Benjamin J. Puttnam, Ayumi Inoue, Takuji Nagashima, Tetsuya Hayashi, Pierpaolo Boffi, Thomas D. Bradley, Chigo Okonkwo, Hideaki Furukawa
2025	J	`jnl`	A Critical Analysis of Deployed Use Cases for Quantum Key Distribution and Comparison with Post-Quantum Cryptography. CoRR Nick Aquina, Bruno Cimoli, Soumya Das, Kathrin Hövelmanns, Fiona Johanna Weber, Chigo Okonkwo, Simon Rommel, Boris Skoric, Idelfonso Tafur Monroy, Sebastian R. Verschoor
2025	J	`jnl`	A Critical Analysis of Deployed Use Cases for Quantum Key Distribution and Comparison with Post-Quantum Cryptography. IACR Cryptol. ePrint Arch. Nick Aquina, Bruno Cimoli, Soumya Das, Kathrin Hövelmanns, Fiona Johanna Weber, Chigo Okonkwo, Simon Rommel, Boris Skoric, Idelfonso Tafur Monroy, Sebastian R. Verschoor
2025	—	`conf`	Analytical Model for the Information Rate of Coupled SDM Systems with MMSE Equalizers. OFC Lucas Zischler, Ruby S. B. Ospina, Menno van den Hout, Chigo Okonkwo, Darli A. A. Mello
2025	—	`conf`	Compact Continuous-Variable Quantum Key Distribution System Employing Monolithically Integrated Silicon Photonic Transceiver. ECOC Denis M. Fatkhiev, João dos Reis Frazão, Alireza H. Derkani, Kadir Gümüs, Menno van den Hout, Aaron Albores-Mejia, Chigo Okonkwo
2025	—	`conf`	Early Termination of Low-Density Parity-Check Codes for Continuous-Variable Quantum Key Distribution. ECOC Kadir Gümüs, João dos Reis Frazão, Vincent van Vliet, Menno van den Hout, Aaron Albores-Mejia, Thomas D. Bradley, Chigo Okonkwo
2025	J	`jnl`	Early Termination of Low-Density Parity-Check Codes for Continuous-Variable Quantum Key Distribution. CoRR Kadir Gümüs, João dos Reis Frazão, Vincent van Vliet, Menno van den Hout, Aaron Albores-Mejia, Thomas D. Bradley, Chigo Okonkwo
2025	—	`conf`	Experimental Characterization of Mode-Dependent Stimulated Raman Scattering in a 15-Mode Fiber. ECOC Julian Schneck, Lucas Zischler, Besma Kalla, Stefano Gaiani, Ruben S. Luís, Pierre Sillard, Daniele Orsuti, Chigo Okonkwo, Cristian Antonelli, Pierpaolo Boffi, Hideaki Furukawa, Georg Rademacher
2025	—	`conf`	Experimental Characterization of Stimulated Raman Scattering in Field-Deployed Coupled-Core Multi-Core Fibers. ECOC Giammarco Di Sciullo, Divya Ann Shaji, Lucas Zischler, Ruben S. Luis, Robert Emmerich, Menno van den Hout, Chiara Lasagni, Paolo Serena, Alberto Bononi, Tetsuya Hayashi, Colja Schubert, Chigo Okonkwo, Luca Palmieri, Mark Shtaif, Andrea Marotta, Antonio Mecozzi, Cristian Antonelli
2025	—	`conf`	Experimental Investigation of Availability in a 4.6 Km Terrestrial Urban Coherent Free-Space Optical Communications Link. ECOC Vincent van Vliet, Menno van den Hout, Kadir Gümüs, Eduward Tangdiongga, Chigo Okonkwo
2025	—	`conf`	Mode-Resolved Characterisation of Photonic Lantern-Based Quantum Links Using SPDC Photon Pairs. ECOC Rodrigo Amorim, Lars Gruner-Nielsen, Liudmila Silanteva, Karsten Rottwitt, Chigo Okonkwo, Thomas D. Bradley
2025	—	`conf`	Partial-MIMO Application for Mode Groups Transmission Over 15-Mode and 6-Mode Multi-Mode Fibers. ECOC Stefano Gaiani, Ruben S. Luis, B. Kalla, Daniele Orsuti, Menno van den Hout, Haoshuo Chen, Nicolas K. Fontaine, Roland Ryf, Pierre Sillard, Georg Rademacher, Thomas D. Bradley, Chigo Okonkwo, Paola Parolari, Alberto Gatto, Pierpaolo Boffi, Hideaki Furukawa
2025	—	`conf`	Performance Comparison of Direct and Coherent Detection in Correlation-Based Distributed Fiber-Optic Acoustic Sensing. ECOC Daniele Orsuti, Luca Palmieri, Ruben S. Luis, Luca Schenato, Marco Santagiustina, Martina Cappelletti, Stefano Gaiani, Besma Kalla, Chigo Okonkwo, Thomas D. Bradley, Pierpaolo Boffi, Andrea Galtarossa, Jun Sakaguchi, Hideaki Furukawa
2025	—	`conf`	Precise Localization of High-Voltage Breakdown Events Using $\phi$-Optical Time-Domain Reflectometry on an Optical Ground Wire. ECOC Konstantinos Alexoudis, Luke Silvestre, Tom Huiskamp, Jasper Müller, Vincent Sleiffer, Florian Azendorf, Sander Jansen, Chigo Okonkwo, Thomas D. Bradley
2025	—	`conf`	Rate-Adaptive Partial MIMO Equalization for Mode-Group Selective Transmission Over Few Mode Fibers. ECOC Ruby S. B. Ospina, Amirhossein Ghazisaeidi, Stefano Gaiani, Ruben S. Luís, Daniele Orsuti, Besma Kalla, Menno van den Hout, Pierre Sillard, Frank Achten, Giammarco Di Sciullo, Georg Rademacher, Hideaki Furukawa, Cristian Antonelli, Chigo Okonkwo, Thomas D. Bradley, Pierpaolo Boffi, Jeremie Renaudier
2025	—	`conf`	Real-Time Diverse Fiber Sensing Multi-Event Detection using Phase OTDR Measurements. OFC Konstantinos Alexoudis, Jasper Müller, Sai Kireet Patri, Vincent A. J. M. Sleiffer, Vishal Chandraprakash Rai, André Sandmann, Sander L. Jansen, Thomas Bradley, Chigo Okonkwo
2025	—	`conf`	Reduction of Modal Dispersion through Mode Permutation in Multi-Mode Fiber Transmission. OFC Giammarco Di Sciullo, Divya Ann Shaji, Menno van den Hout, Georg Rademacher, Ruben S. Luís, Benjamin J. Puttnam, Nicolas K. Fontaine, Roland Ryf, Haoshuo Chen, Mikael Mazur, David T. Neilson, Pierre Sillard, Frank Achten, Jun Sakaguchi, Chigo Okonkwo, Antonio Mecozzi, Cristian Antonelli, Hideaki Furukawa
2025	—	`conf`	Short Blocklength Error Correction Codes for Continuous-Variable Quantum Key Distribution. ECOC Kadir Gümüs, João dos Reis Frazão, Boris Skoric, Gabriele Liga, Aaron Albores-Mejia, Thomas D. Bradley, Chigo Okonkwo
2025	J	`jnl`	Short Blocklength Error Correction Codes for Continuous-Variable Quantum Key Distribution. CoRR Kadir Gümüs, João dos Reis Frazão, Boris Skoric, Gabriele Liga, Aaron Albores-Mejia, Thomas D. Bradley, Chigo Okonkwo
2025	—	`conf`	Tapered Optical Fibres with a Xenon Gas Cladding for Entangled Photon Pair Generation. OFC Thomas D. Bradley, Liudmila Silanteva, Menno van den Hout, Chigo Okonkwo
2024	—	`conf`	45.7 Tb/s over 12 053 km Transmission with an All-Multi-Core Recirculating-Loop 4-Core-Fiber System. OFC Giammarco Di Sciullo, Benjamin J. Puttnam, Menno van den Hout, Ruben S. Luís, Divya Ann Shaji, Georg Rademacher, Chigo Okonkwo, Antonio Mecozzi, Cristian Antonelli, Hideaki Furukawa
2024	—	`conf`	Adaptive Reconciliation for Experimental Continuous-Variable Quantum Key Distribution Over a Turbulent Free-Space Optical Channel. OFC 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
2024	—	`conf`	Co-propagation of Classical and Continuous-variable QKD Signals over a Turbulent Optical Channel with a Real-time QKD Receiver. OFC João dos Reis Frazão, Vincent van Vliet, Sjoerd van der Heide, Menno van den Hout, Kadir Gümüs, Aaron Albores-Mejia, Boris Skoric, Chigo Okonkwo
2024	—	`conf`	Experimental Analysis of Receiver Failure For 19-Core Randomly Coupled Core Fibre Transmission. OFC Menno van den Hout, Ruby S. B. Ospina, Ruben S. Luís, Benjamin J. Puttnam, Giammarco Di Sciullo, Tetsuya Hayashi, Ayumi Inoue, Takuji Nagashima, Simon Gross, Andrew Ross-Adams, Michael J. Withford, Jun Sakaguchi, Darli A. A. Mello, Cristian Antonelli, Hideaki Furukawa, Chigo Okonkwo, Georg Rademacher
2024	J	`jnl`	Experimental demonstration of a multi-core fiber seeded comb optical network (MCF-SCON). J. Opt. Commun. Netw. Benjamin J. Puttnam, Ruben S. Luis, Daniele Orsuti, Georg Rademacher, Giammarco Di Sciullo, Menno van den Hout, Jun Sakaguchi, Cristian Antonelli, Chigo Okonkwo, Luca Palmieri, Hideaki Furukawa
2024	—	`conf`	Wideband S, C,+ L-Band Comb Regeneration in Large-Scale Few-Mode MCF Link with Single-Mode Seed Channel. OFC Benjamin J. Puttnam, Daniele Orsuti, Ruben S. Luis, Manuel S. Neves, Menno van den Hout, Giammarco Di Sciullo, Georg Rademacher, Jun Sakaguchi, Cristian Antonelli, Chigo Okonkwo, Luca Palmieri, Hideaki Furukawa
2023	—	`conf`	273.6 Tb/s Transmission Over 1001 km of 15-Mode Fiber Using 16-QAM C-Band Signals. OFC Menno van den Hout, Giammarco Di Sciullo, Georg Rademacher, Ruben S. Luís, Benjamin J. Puttnam, Nicolas K. Fontaine, Roland Ryf, Haoshuo Chen, Mikael Mazur, David T. Neilson, Pierre Sillard, Frank Achten, Jun Sakaguchi, Cristian Antonelli, Chigo Okonkwo, Hideaki Furukawa
2023	J	`jnl`	A Simplified Method for Optimising Geometrically Shaped Constellations of Higher Dimensionality. CoRR Kadir Gümüs, Bin Chen, Thomas D. Bradley, Chigo Okonkwo
2023	J	`jnl`	Adaptive Reconciliation for Experimental Continuous-Variable Quantum Key Distribution Over a Turbulent Free-Space Optical Channel. CoRR 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
2023	—	`conf`	Randomly Coupled 19-Core Multi-Core Fiber with Standard Cladding Diameter. OFC Georg Rademacher, Menno van den Hout, Ruben S. Luís, Benjamin J. Puttnam, Giammarco Di Sciullo, Tetsuya Hayashi, Ayumi Inoue, Takuji Nagashima, Simon Gross, Andrew Ross-Adams, Michael J. Withford, Jun Sakaguchi, Cristian Antonelli, Chigo Okonkwo, Hideaki Furukawa
2023	—	`conf`	Receiver Noise Stability Calibration for CV-QKD. OFC Sjoerd van der Heide, João dos Reis Frazão, Aaron Albores-Mejia, Chigo Okonkwo
2022	—	`conf`	On Optimum Enumerative Sphere Shaping Blocklength at Different Symbol Rates for the Nonlinear Fiber Channel. OECC/PSC Yunus Can Gültekin, Olga Vassilieva, Inwoong Kim, Paparao Palacharla, Chigo Okonkwo, Alex Alvarado
2022	J	`jnl`	On Optimum Enumerative Sphere Shaping Blocklength at Different Symbol Rates for the Nonlinear Fiber Channel. CoRR Yunus Can Gültekin, Olga Vassilieva, Inwoong Kim, Paparao Palacharla, Chigo Okonkwo, Alex Alvarado
2022	—	`conf`	Optical Field Characterization using Off-axis Digital Holography. OFC 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, Chigo Okonkwo
2022	—	`conf`	Overview of GPU-Based Real-Time Receivers Using Kramers-Kronig Coherent Detection. OECC/PSC Ruben S. Luis, Sjoerd van der Heide, Georg Rademacher, Benjamin J. Puttnam, Chigo Okonkwo, Hideaki Furukawa
2022	—	`conf`	Real-time transmission using a GPU-based Kramers-Kronig coherent receiver. OECC/PSC Sjoerd van der Heide, Ruben S. Luis, Benjamin J. Puttnam, Georg Rademacher, Ton Koonen, Satoshi Shinada, Yoshinari Awaji, Hideaki Furukawa, Chigo Okonkwo
2021	—	`conf`	10, 000 km Straight-line Transmission using a Real-time Software-defined GPU-Based Receiver. OFC Sjoerd van der Heide, Ruben S. Luis, Benjamin J. Puttnam, Georg Rademacher, Ton Koonen, Satoshi Shinada, Yoshinari Awaji, Hideaki Furukawa, Chigo Okonkwo
2021	—	`conf`	Extending White Gaussian Noise Capacity Estimation Method with Probabilistic Constellation Shaping. ECOC Menno van den Hout, Sjoerd van der Heide, Ali Mefleh, Chigo Okonkwo
2021	—	`conf`	Fibre device estimation techniques for SDM transmission. ECOC Chigo Okonkwo, Menno van den Hout, Sjoerd van der Heide, John van Weerdenburg
2021	—	`conf`	Kramers-Kronig Receiver Combined With Digital Resolution Enhancer. OFC Menno van den Hout, Sjoerd van der Heide, Chigo Okonkwo
2021	J	`jnl`	Low-Complexity Geometrical Shaping for 4D Modulation Formats via Amplitude Coding. CoRR Bin Chen, Wei Ling, Yunus Can Gültekin, Yi Lei, Chigo Okonkwo, Alex Alvarado
2021	—	`conf`	Neural-network-based MDG and Optical SNR Estimation in SDM Transmission. OFC Ruby S. B. Ospina, Menno van den Hout, Sjoerd van der Heide, Chigo Okonkwo, Darli A. A. Mello
2020	—	`conf`	1 Tbit/s/λ Transmission Over a 130 km Link Consisting of Graded-Index 50µm Core Multi-Mode Fiber and 6LP Few-Mode Fiber. ECOC 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
2020	J	`jnl`	Analysis and Experimental Demonstration of Orthant-Symmetric Four-dimensional 7 bit/4D-sym Modulation for Optical Fiber Communication. CoRR Bin Chen, Alex Alvarado, Sjoerd van der Heide, Menno van den Hout, Hartmut Hafermann, Chigo Okonkwo
2020	—	`conf`	Assembly and Characterization of a Multimode EDFA using Digital Holography. OFC 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, Rodrigo Amezcua Correa
2020	—	`conf`	DSP-Based Mode-Dependent Loss and Gain Estimation in Coupled SDM Transmission. OFC Ruby S. B. Ospina, Chigo Okonkwo, Darli A. A. Mello
2020	—	`conf`	Experimental validation of MDL emulation and estimation techniques for SDM transmission systems. ECOC 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
2020	—	`conf`	Exploiting Angular Multiplexing for Polarization-diversity in Off-axis Digital Holography. ECOC 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
2020	J	`jnl`	Hard-Decision Coded Modulation for High-Throughput Short-Reach Optical Interconnect. Entropy Bin Chen, Yi Lei, Gabriele Liga, Chigo Okonkwo, Alex Alvarado
2020	—	`conf`	Low-Loss Low-MDL Core Multiplexer for 3-Core Coupled-Core Multi-Core Fiber. OFC Sjoerd van der Heide, Juan Carlos Alvarado-Zacarias, Nicolas K. Fontaine, Roland Ryf, Haoshuo Chen, Rodrigo Amezcua Correa, Ton Koonen, Chigo Okonkwo
2020	—	`conf`	Nonlinear Interference Analysis of Probabilistic Shaping vs. 4D Geometrically Shaped Formats. ECOC Bin Chen, Chigo Okonkwo, Alex Alvarado
2020	J	`jnl`	Nonlinear Interference Analysis of Probabilistic Shaping vs. 4D Geometrically Shaped Formats. CoRR Bin Chen, Chigo Okonkwo, Alex Alvarado
2020	—	`conf`	Real-time, Software-Defined, GPU-Based Receiver Field Trial. ECOC Sjoerd van der Heide, Ruben S. Luis, Benjamin J. Puttnam, Georg Rademacher, Ton Koonen, Satoshi Shinada, Yoshinari Awaji, Chigo Okonkwo, Hideaki Furukawa
2019	—	`conf`	11, 700 km Transmission at 4.8 bit/4D-sym via Four-dimensional Geometrically-shaped Polarization-Ring-Switching Modulation. OECC/PSC Sjoerd van der Heide, Bin Chen, Menno van den Hout, Gabriele Liga, Ton Koonen, Hartmut Hafermann, Alex Alvarado, Chigo Okonkwo
2019	J	`jnl`	30% Reach Increase via Low-complexity Hybrid HD/SD FEC and Nonlinearity-tolerant 4D Modulation. CoRR Gabriele Liga, Bin Chen, Sjoerd van der Heide, Alireza Sheikh, Menno van den Hout, Chigo Okonkwo, Alex Alvarado
2019	—	`conf`	Chromatic Dispersion Analysis and Compensation in a Large Core-Count Few-Mode Multi-Core Fiber Based on Optical Vector Network Analysis. OFC John van Weerdenburg, Simon Rommel, Jose Manuel Delgado Mendinueta, Werner Klaus, Jun Sakaguchi, Juan Jose Vegas Olmos, Ton Koonen, Yoshinari Awaji, Idelfonso Tafur Monroy, Chigo Okonkwo, Naoya Wada
2019	J	`jnl`	Enumerative Sphere Shaping for Rate Adaptation and Reach Increase in WDM Transmission Systems. CoRR Abdelkerim Amari, Sebastiaan Goossens, Yunus Can Gultekin, Olga Vassilieva, Inwoong Kim, Tadashi Ikeuchi, Chigo Okonkwo, Frans M. J. Willems, Alex Alvarado
2019	—	`conf`	First Experimental Demonstration of Probabilistic Enumerative Sphere Shaping in Optical Fiber Communications. OECC/PSC 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
2019	J	`jnl`	First Experimental Demonstration of Probabilistic Enumerative Sphere Shaping in Optical Fiber Communications. CoRR 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
2019	—	`conf`	First Experimental Verification of Improved Decoding of Staircase Codes using Marked Bits. OFC Bin Chen, Yi Lei, Sjoerd van der Heide, John van Weerdenburg, Alex Alvarado, Chigo Okonkwo
2019	J	`jnl`	Introducing Enumerative Sphere Shaping for Optical Communication Systems with Short Blocklengths. CoRR Abdelkerim Amari, Sebastiaan Goossens, Yunus Can Gultekin, Olga Vassilieva, Inwoong Kim, Tadashi Ikeuchi, Chigo Okonkwo, Frans M. J. Willems, Alex Alvarado
2019	—	`conf`	Physical-Layer Confidentiality by Chaotic Encoding in Radio-Over-Fiber Systems. OFC Álvaro Morales, Dimitrios Konstantinou, Simon Rommel, Ulf Johannsen, Chigo Okonkwo, Idelfonso Tafur Monroy
2019	J	`jnl`	Polarization-ring-switching for nonlinearity-tolerant geometrically-shaped four-dimensional formats maximizing generalized mutual information. CoRR Bin Chen, Chigo Okonkwo, Hartmut Hafermann, Alex Alvarado
2019	—	`conf`	Quantum Data Encryption as a Service on Demand: Eindhoven QKD Network Testbed. ICTON Thiago R. Raddo, Simon Rommel, Victor Land, Chigo Okonkwo, Idelfonso Tafur Monroy
2019	—	`conf`	W-Band Heterodyne Wireless System with 2.3 GHz Intermediate Frequency Driven Entirely by ErAs: In(Al)GaAs Photoconductors. ICTON Anuar de Jesus Fernandez Olvera, Álvaro Morales, Yunfeng Dong, Dimitrios Konstantiouv, Simon Rommel, Tom K. Johansen, Chigo Okonkwo, Idelfonso Tafur Monroy, Sascha Preu
2018	—	`conf`	Experimental Validation of a Channel Estimation Algorithm for Transmitter-side Digital Pre-compensation Filters. OFC Sjoerd van der Heide, Ton Koonen, Chigo Okonkwo
2018	—	`conf`	Geometrically-shaped 64-point Constellations via Achievable Information Rates. ICTON Bin Chen, Chigo Okonkwo, Domaniç Lavery, Alex Alvarado
2018	—	`conf`	Increasing Achievable Information Rates via Geometric Shaping. ECOC Bin Chen, Chigo Okonkwo, Hartmut Hafermann, Alex Alvarado
2018	J	`jnl`	Increasing Achievable Information Rates via Geometric Shaping. CoRR Bin Chen, Chigo Okonkwo, Hartmut Hafermann, Alex Alvarado
2018	—	`conf`	Mode-Multiplexed 16-QAM Transmission over 2400-km Large-Effective-Area Depressed-Cladding 3-Mode Fiber. OFC John van Weerdenburg, Roland Ryf, Roberto A. Alvarez-Aguirre, Nicolas K. Fontaine, René-Jean Essiambre, Haoshuo Chen, Juan Carlos Alvarado-Zacarias, Rodrigo Amezcua Correa, Simon Gross, Nicolas Riesen, Michael J. Withford, David W. Peckham, Alan McCurdy, Robert Lingle, Ton Koonen, Chigo Okonkwo
2018	—	`conf`	Optical Crosstalk Reduction using Amplified Spontaneous Emission (ASE). OFC Haoshuo Chen, Nicolas K. Fontaine, Roland Ryf, Juan Carlos Alvarado, John van Weerdenburg, Rodrigo Amezcua Correa, Chigo Okonkwo, Ton Koonen
2018	—	`conf`	Single Carrier 1 Tbit/s Mode-Multiplexed Transmission Over Graded-Index 50µm Core Multi-Mode Fiber Employing Kramers-Kronig Receivers. ECOC 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
2018	—	`conf`	Testing Facilities for End-to-End Test of Vertical Applications Enabled by 5G Networks: Eindhoven 5G Brainport Testbed. ICTON Idelfonso Tafur Monroy, Thiago R. Raddo, Simon Rommel, Chigo Okonkwo, Nicola Calabretta, Ulf Johannsen, Gijs Dubbelman, Jesse Scholtes, Ben Rutten
2018	—	`conf`	White Gaussian Noise Based Capacity Estimate and Characterization of Fiber-Optic Links. OFC Roland Ryf, John van Weerdenburg, Roberto A. Alvarez-Aguirre, Nicolas K. Fontaine, René-Jean Essiambre, Haoshuo Chen, Juan Carlos Alvarado-Zacarias, Rodrigo Amezcua Correa, Ton Koonen, Chigo Okonkwo
2017	—	`conf`	112-Gbit/s Single Side-Band PAM-4 Transmission over Inter-DCI Distances Without DCF Enabled by Low-complexity DSP. ECOC Sjoerd van der Heide, Aaron Albores-Mejia, Fausto Gomez-Agis, Boudewijn Docter, Chigo Okonkwo
2017	—	`conf`	112-Gbit/sλ PAM4 Transmission enabled by a Negatively-Chirped InP-MZ Modulator. ECOC Aaron Albores-Mejia, Sjoerd van der Heide, Muhammad Usman Sadiq, Saeed Tahvili, Chigo Okonkwo, Boudewijn Docter
2017	—	`conf`	138 Tbit/s Transmission over 650 km Graded-Index 6-Mode Fiber. ECOC John van Weerdenburg, Roland Ryf, Juan Carlos Alvarado-Zacarias, Roberto A. Alvarez-Aguirre, Nicolas K. Fontaine, Haoshuo Chen, Rodrigo Amezcua Correa, Ton Koonen, Chigo Okonkwo
2017	—	`conf`	Programmable Vector Mode Multiplexer. ECOC Nicolas K. Fontaine, Haoshuo Chen, Roland Ryf, David T. Neilson, Juan Carlos Alvarado, John van Weerdenburg, Rodrigo Amezcua Correa, Chigo Okonkwo, Joel Carpenter
2016	J	`jnl`	An Experimental Comparison of Coded Modulation Strategies for 100 Gbit/s Transceivers. CoRR Eric Sillekens, Alex Alvarado, Chigo Okonkwo, Benn C. Thomsen
2016	—	`conf`	Multi-flex field trial over 762km of G.652 SSMF using programmable modulation formats up to 64QAM. OFC Danish Rafique, Talha Rahman, Bernhard Spinnler, Erwan Pincemin, Stefano Calabrò, Erik De Man, Uwe Feiste, Juraj Slovak, Antonio Napoli, Claude Le Bouëtté, Jérémie Jauffrit, Sylvain Bordais, Ginni Khanna, Norbert Hanik, Chigo Okonkwo, Maxim Kuschnerov, Antonius M. J. Koonen, Christian Dourthe, Bruno Raguenes, Tomislav Drenski, Bernd Sommerkorn-Krombholz, Huug de Waardt, Marc Bohn
2015	—	`conf`	112 Gbit/s single-polarization silicon coherent receiver with hybrid-integrated BiCMOS linear TIA. ECOC Jochem Verbist, Jing Zhang, Bart Moeneclaey, John van Weerdenburg, Roy van Uden, Chigo Okonkwo, Xin Yin, Johan Bauwelinck, Gunther Roelkens
2015	—	`conf`	Scaling the fabrication of higher order photonic lanterns using microstructured preforms. ECOC A. M. Velazquez-Benitez, Jose Enrique Antonio-Lopez, Juan Carlos Alvarado-Zacarias, Gisela Lopez-Galmiche, Pierre Sillard, Dennis Van Ras, Chigo Okonkwo, Haoshuo Chen, Roland Ryf, Nicolas K. Fontaine, Rodrigo Amezcua Correa
2015	—	`conf`	Six spatial modes photonic lanterns. OFC A. M. Velazquez-Benitez, Juan Carlos Alvarado-Zacarias, Gisela Lopez-Galmiche, Jose Enrique Antonio-Lopez, Axel Schülzgen, Dennis Van Ras, Pierre Sillard, Chigo Okonkwo, Rodrigo Amezcua Correa
2013	J	`jnl`	Cyclic-Linked Flexibility: An Architectural Approach for Reconfigurable Optical WDM-TDM Access Networks. JOCN Nguyen-Cac Tran, Chigo Okonkwo, Eduward Tangdiongga, Hyun-Do Jung, Ton Koonen
2013	—	`conf`	Elastic optical networks: The vision of the ICT project IDEALIST. Future Network & Mobile Summit Marc Bohn, Antonio Napoli, Antonio D'Errico, Giuseppe Ferraris, Matthias Gunkel, Felipe Jiménez, Juan Pedro Fernández-Palacios, Patricia Layec, George Zervas, Norberto Amaya Gonzalez, Dimitra Simeonidou, Johannes Karl Fischer, Markus Nölle, Colja Schubert, Nicola Sambo, Filippo Cugini, Piero Castoldi, Michela Svaluto Moreolo, Josep M. Fabrega, Chigo Okonkwo, Huug de Waardt
2008	C	`conf`	A control bridge to automate the convergence of Passive Optical Networks and IEEE 802.16 (WiMAX) wireless networks. BROADNETS Shumao Ou, Kun Yang, Marcos Paredes-Farrera, Chigo Okonkwo, Kenneth M. Guild
2008	J	`jnl`	Performance analysis of an optical packet switch with shared parametric wavelength converters. IEEE Commun. Lett. Chigo Okonkwo, Raul C. Almeida Jr., Richard E. Martin, Kenneth M. Guild