41 citations · 96 across the 18 of their papers we have counts for
18 papers
Rate-adaptive Reconciliation for Experimental Continuous-variable Quantum Key Distribution with Discrete Modulation over a Free-space Optical Link
Kadir Gümüş, João dos Reis Frazão, Vincent van Vliet +8
Continuous-variable quantum key distribution (CV-QKD) has been proposed as a method for securely exchanging keys to protect against the security concerns caused by potential advanc…
Noise characterization for co-propagation of classical and CV-QKD signals over fiber and free-space link
João dos Reis Frazão, Vincent van Vliet, Kadir Gümüş +5
Real-time CV-QKD receiver achieves peak 2.9 Mbit/s secret-key-rates over 12.8 km of fiber, while co-propagating 15 classical channels, separated 1 nm from the quantum signal. Perfo…
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 +5
We demonstrate classical and quantum signal co-propagation over a turbulent free-space channel with 3 Tbit/s throughput and record 2.7 Mbit/s secret-key rate. Our real-time GPU-bas…
Adaptive Reconciliation for Experimental Continuous-Variable Quantum Key Distribution Over a Turbulent Free-Space Optical Channel
Kadir Gümüş, João dos Reis Frazão, Vincent van Vliet +5
We experimentally demonstrate adaptive reconciliation for continuous-variable quantum key distribution over a turbulent free-space optical channel. Additionally, we propose a metho…
Experimental Investigation of Mode Diversity Reception Using an Optical Turbulence Generator and Digital Holography
Vincent van Vliet, Menno van den Hout, Sjoerd van der Heide +1
Mode diversity reception is experimentally investigated using an optical turbulence generator, off-axis digital holography, and digital demultiplexing. The results confirm improved…
Experimental Validation of Sequence-Wise Predistorter for Evaluation of Geometrically Shaped 128-QAM
Menno van den Hout, Sjoerd van der Heide, Sebastiaan Goossens +1
A predistorter for transmitter nonlinearities is applied to the evaluation of a geometrically shaped constellation, such that constellation points are transmitted correctly during…
MDG and SNR Estimation in SDM Transmission Based on Artificial Neural Networks
Ruby S. B. Ospina, Menno van den Hout, Sjoerd van der Heide +7
The increase in capacity provided by coupled SDM systems is fundamentally limited by MDG and ASE noise. Therefore, monitoring MDG and optical SNR is essential for accurate performa…
Real-time Transmission of Geometrically-shaped Signals using a Software-defined GPU-based Optical Receiver
Sjoerd van der Heide, Ruben S. Luis, Sebastiaan Goossens +8
A software-defined optical receiver is implemented on an off-the-shelf commercial graphics processing unit (GPU). The receiver provides real-time signal processing functionality to…
Real-time 10,000 km Straight-line Transmission using a Software-defined GPU-Based Receiver
Sjoerd van der Heide, Ruben S. Luis, Benjamin J. Puttnam +6
Real-time 10,000 km transmission over a straight-line link is achieved using a software-defined multi-modulation format receiver implemented on a commercial off-the-shelf general-p…
Kramers-Kronig Receiver Combined With Digital Resolution Enhancer
Menno van den Hout, Sjoerd van der Heide, Chigo Okonkwo
A Kramers-Kronig receiver with a continuous wave tone added digitally at the transmitter is combined with a digital resolution enhancer to limit the increase in transmitter quantiz…
Neural-network-based MDG and Optical SNR Estimation in SDM Transmission
Ruby S B Ospina, Menno van den Hout, Sjoerd van der Heide +2
We propose a neural network model for MDG and optical SNR estimation in SDM transmission. We show that the proposed neural-network-based solution estimates MDG and SNR with high ac…
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 +6
Real-time operation of a software-defined, GPU-based optical receiver is demonstrated over a 100-span straight-line optical link. Performance of minimum-phase Kramers-Kronig 4-, 8-…
Field Trial of a Flexible Real-time Software-defined GPU-based Optical Receiver
Sjoerd van der Heide, Ruben S. Luis, Benjamin J. Puttnam +6
We introduce a flexible, software-defined real-time multi-modulation format receiver implemented on an off-the-shelf general-purpose graphics processing unit (GPU). The flexible re…
1 Tbit/s/ Transmission Over a 130 km Link Consisting of Graded-Index 50 m Core Multi-Mode Fiber and 6LP Few-Mode Fiber
Menno van den Hout, Sjoerd van der Heide, John van Weerdenburg +7
We demonstrate 1 Tbit/s/ single-span transmission over a heterogeneous link consisting of graded-index 50 m core multi-mode fiber and 6LP few-mode fiber using a Kramers-Kroni…
Exploiting Angular Multiplexing for Polarization-diversity in Off-axis Digital Holography
Sjoerd van der Heide, Rutger van Anrooij, Menno van den Hout +9
Digital holography measures the complex optical field and transfer matrix of a device, polarization-diversity is often achieved through spatial multiplexing. We introduce angular m…
Real-time, Software-Defined, GPU-Based Receiver Field Trial
Sjoerd van der Heide, Ruben S. Luis, Benjamin J. Puttnam +6
We demonstrate stable real-time operation of a software-defined, GPU-based receiver over a metropolitan network. Massive parallelization is exploited for implementing direct-detect…
Analysis and Experimental Demonstration of Orthant-Symmetric Four-dimensional 7 bit/4D-sym Modulation for Optical Fiber Communication
Bin Chen, Alex Alvarado, Sjoerd van der Heide +3
We propose a new four-dimensional orthant-symmetric 128-ary modulation format (4D-OS128) with a spectral efficiency of 7bit/4D-sym. The proposed format fills the gap between polari…
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, Menno van den Hout +5
Using a novel geometrically-shaped four-dimensional modulation format, we transmitted 11x200 Gbit/s DWDM at 4.8 bit/4D-sym over 7,925 km and 11,700 km using EDFA-only and hybrid am…