Some Results on Generalized Concatenation of Block Codes. - Martin Bossert; Helmut Grießer; Johannes Maucher; Victor V. Zyablov (AAECC, 1999)

A Posteriory Probability Decoding of Nonsystematically Encoded Block Codes. - Helmut Griesser; Vladimir R. Sidorenko (Probl. Inf. Transm., 2002)

On soft concatenated decoding of block codes. - Helmut Grießer (2003)

On GEL codes for partial response channels. - Achim Fahrner; Helmut Fecker; Robert Klarer; Helmut Grießer (ICC, 2004)

Techno-Economic Analysis of Dispersion-Tolerant Transmission Techniques for 10Gb/s DWDM Systems. - Cornelius Fürst; Helmut Griesser; Jörg-Peter Elbers; Christoph Glingener (OpNeTec, 2004)

First experimental demonstration of a 3-dimensional simplex modulation format showing improved OSNR performance compared to DP-BPSK. - Annika Dochhan; Helmut Griesser; Michael Eiselt (OFC/NFOEC, 2013)

Experimental demonstration of OFDMA-PON uplink-transmission with four individual ONUs. - Johannes von Hoyningen-Huene; Helmut Griesser; Michael Eiselt; Werner Rosenkranz (OFC/NFOEC, 2013)

Coherent Subcarrier-WDM-PON system with SSB modulation and wavelength reuse. - Christoph Kottke; Kai Habel; Michael Eiselt; Helmut Griesser; Jörg-Peter Elbers (OFC/NFOEC, 2013)

First quantum secured 10-Gb/s DWDM transmission over the same installed fibre. - Iris Choi; Yu Rong Zhou; James F. Dynes; Zhiliang Yuan; Andreas Klar; Andrew W. Sharpe; Alan Plews; Marco Lucamarini; Christian Radig; Jorg Neubert; Helmut Griesser; Michael Eiselt; et al. (ECOC, 2014)

Flexible bandwidth 448 Gb/s DMT transmission for next generation data center inter-connects. - Annika Dochhan; Helmut Grießer; Michael Eiselt; Jörg-Peter Elbers (ECOC, 2014)

Effect of clipping on the performance of Nyquist-shaped dispersion-precompensated subcarrier modulation transmission with direct detection. - M. Sezer Erkilinc; Stephan Pachnicke; Helmut Grießer; Polina Bayvel; Benn C. Thomsen; Robert I. Killey (ECOC, 2014)

Experimental investigation of discrete multitone transmission in the presence of optical noise and chromatic dispersion. - Annika Dochhan; Laia Nadal; Helmut Griesser; Michael Eiselt; Michela Svaluto Moreolo; Jörg-Peter Elbers (OFC, 2014)

Nyquist-shaped dispersion-precompensated subcarrier modulation with direct detection. - M. Sezer Erkilinc; Sean Kilmurray; Stephan Pachnicke; Helmut Griesser; Benn C. Thomsen; Polina Bayvel; Robert I. Killey (OFC, 2014)

Comparison of Rx-DSP-structures in experimental OFDMA-PON uplink transmission system. - Johannes von Hoyningen-Huene; Helmut Griesser; Michael Eiselt; Christian Ruprecht; Werner Rosenkranz (OFC, 2014)

Spectrally-efficient single sideband 16-QAM Nyquist-subcarrier modulation-based WDM transmission using an InP dual-drive Mach-Zehnder modulator and direct-detection. - M. S. Erkilincc; Stephan Pachnicke; Helmut Griesser; Benn C. Thomsen; Polina Bayvel; Robert I. Killey (ECOC, 2015)

First demonstration of real-time end-to-end 40 Gb/s PAM-4 system using 10-G transmitter for next generation access applications. - Jinlong Wei; Nicklas Eiselt; Helmut Griesser; Klaus Grobe; Michael Eiselt; Juan Jose Vegas Olmos; Idelfonso Tafur Monroy; Jörg-Peter Elbers (ECOC, 2015)

Direct-detection 16-QAM Nyquist-shaped subcarrier modulation with SSBI mitigation. - Zhe Li; M. Sezer Erkilinc; Stephan Pachnicke; Helmut Griesser; Benn C. Thomsen; Polina Bayvel; Robert I. Killey (ICC, 2015)

Spectrally-efficient direct-detection WDM transmission systems. - Robert I. Killey; M. Sezer Erkilinc; Zhe Li; Stephan Pachnicke; Helmut Griesser; Rachid Bouziane; Benn C. Thomsen; Polina Bayvel (ICTON, 2015)

Investigation of PAM-4 for extending reach in data center interconnect applications. - Brian Thomas Teipen; Nicklas Eiselt; Annika Dochhan; Helmut Griesser; Michael Eiselt; Jörg-Peter Elbers (ICTON, 2015)

Solutions for 80 km DWDM systems. - Annika Dochhan; Helmut Griesser; Michael Eiselt; Jörg-Peter Elbers (OFC, 2015)

High performance 400 Gigabit Ethernet links using hybrid multiband CAP/QAM scheme. - Jinlong Wei; Qixiang Cheng; David G. Cunningham; Richard V. Penty; Ian H. White; Helmut Griesser (OFC, 2015)

Real-time evaluation of 26-GBaud PAM-4 intensity modulation and direct detection systems for data-center interconnects. - Nicklas Eiselt; Helmut Griesser; Jinlong Wei; Annika Dochhan; Michael Eiselt; Jörg-Peter Elbers; Juan Jose Vegas Olmos; Idelfonso Tafur Monroy (OFC, 2016)

First real-time 400G PAM-4 demonstration for inter-data center transmission over 100 km of SSMF at 1550 nm. - Nicklas Eiselt; Jinlong Wei; Helmut Griesser; Annika Dochhan; Michael Eiselt; Jörg-Peter Elbers; Juan Jose Vegas Olmos; Idelfonso Tafur Monroy (OFC, 2016)

40 Gb/s lane rate NG-PON using electrical/optical duobinary, PAM-4 and low complex equalizations. - Jinlong Wei; Klaus Grobe; Christoph Wagner; Elias G. Giacoumidis; Helmut Griesser (OFC, 2016)

Advanced multi-band modulation schemes for high speed data center optical interconnects. - Jinlong Wei; Helmut Griesser (WOCC, 2016)

TSDN-Enabled Network Assurance: A Cognitive Fault Detection Architecture. - Danish Rafique; Thomas Szyrkowiec; Helmut Griesser; Achim Autenrieth; Jörg-Peter Elbers (ECOC, 2017)

Digital pre-emphasis based system design trade-offs for 64 Gbaud coherent data center interconnects. - Danish Rafique; Nicklas Eiselt; Helmut Griesser; Benjamin Wohlfeil; Michael Eiselt; Jörg-Peter Elbers (ICTON, 2017)

Real-time 200 Gb/s (4×56.25 Gb/s) PAM-4 transmission over 80 km SSMF using quantum-dot laser and silicon ring-modulator. - Nicklas Eiselt; Helmut Griesser; Michael Eiselt; Wilfried Kaiser; Saeid Aramideh; Juan Jose Vegas Olmos; Idelfonso Tafur Monroy; Jörg-Peter Elbers (OFC, 2017)

Enabling 64Gbaud coherent optical transceivers. - Danish Rafique; Helmut Griesser; Jörg-Peter Elbers (OFC, 2017)

First Demonstration of Fully Integrated Segmented Driver and MZM in 0.25-µm SiGe BiCMOS employing 112 Gb/s PAM4 over 60 km SSMF. - Benjamin Wohlfeil; Nicklas Eiselt; Pedro Rito; Annika Dochhan; Gilda Raoof Mehrpoor; Danish Rafique; Despoina Petousi; Iria Garcia Lopez; Stefan Lischke; Dietmar Kissinger; Lars Zimmermann; Michael Eiselt; et al. (ECOC, 2018)

Improving Achievable Information Rates of 64-GBd PDM-64QAM by Nonlinear Transmitter Predistortion. - Robert Elschner; Robert Emmerich; Carsten Schmidt-Langhorst; Felix Frey; Pablo Wilke Berenguer; Johannes K. Fischer; Helmut Grießer; Danish Rafique; Jörg-Peter Elbers; Colja Schubert (OFC, 2018)

Modeling and Design Aspects of a Monolithically Integrated Optoelectronic Chip enabling 64Gbaud Operation. - Danish Rafique; Benjamin Wohlfeil; Gilda Raoof Mehrpoor; Helmut Griesser; Despoina Petousi; Pedro Rito; Iria Garcia Lopez; Lars Zimmermann; Michael Eiselt; Jörg-Peter Elbers (OFC, 2018)

Performance Comparison of 112 Gb/s DMT, Nyquist PAM4 and Partial-Response PAM4 for Future 5G Ethernet-based Fronthaul Architecture. - Nicklas Eiselt; Daniel Muench; Annika Dochhan; Helmut Griesser; Michael Eiselt; Juan Jose Vegas Olmos; Idelfonso Tafur Monroy; Jörg-Peter Elbers (CoRR, 2018)

Towards Quantum-resistant Virtual Private Networks. - Joo Cho; Stefan-Lukas Gazdag; Alexander von Gernler; Helmut Grießer; Sophia Grundner-Culemann; Tobias Guggemos; Tobias Heider; Daniel Loebenberger (Krypto-Tag, 2019)

Machine Learning Based Data Driven Diagnostic and Prognostic Approach for Laser Reliability Enhancement. - Khouloud Abdelli; Helmut Grießer; Stephan Pachnicke (ICTON, 2020)

Lifetime Prediction of 1550 nm DFB Laser using Machine Learning Techniques. - Khouloud Abdelli; Danish Rafique; Helmut Grießer; Stephan Pachnicke (OFC, 2020)

Mitigating Fiber Nonlinearities by Short-Length Probabilistic Shaping. - Tobias Fehenberger; Helmut Griesser; Jörg-Peter Elbers (OFC, 2020)

Exploring Channel Probing to Determine Coherent Optical Transponder Configurations in a Long-Haul Network. - Kaida Kaeval; Danish Rafique; Kamil Blawat; Klaus Grobe; Helmut Grießer; Jörg-Peter Elbers; Piotr Rydlichowski; Artur Binczewski; Marko Tikas (OFC, 2020)

Analysis of Nonlinear Fiber Interactions for Finite-Length Constant-Composition Sequences. - Tobias Fehenberger; David S. Millar; Toshiaki Koike-Akino; Keisuke Kojima; Kieran Parsons; Helmut Griesser (CoRR, 2020)

Huffman-coded Sphere Shaping and Distribution Matching Algorithms via Lookup Tables. - Tobias Fehenberger; David S. Millar; Toshiaki Koike-Akino; Keisuke Kojima; Kieran Parsons; Helmut Griesser (CoRR, 2020)

Gated Recurrent Unit based Autoencoder for Optical Link Fault Diagnosis in Passive Optical Networks. - Khouloud Abdelli; Florian Azendorf; Helmut Grießer; Carsten Tropschug; Stephan Pachnicke (ECOC, 2021)

A QoT Estimation Method using EGN-assisted Machine Learning for Network Planning Applications. - Jasper Müller; Sai Kireet Patri; Tobias Fehenberger; Carmen Mas Machuca; Helmut Griesser; Jörg-Peter Elbers (ECOC, 2021)

A BiLSTM-CNN based Multitask Learning Approach for Fiber Fault Diagnosis. - Khouloud Abdelli; Helmut Grießer; Carsten Tropschug; Stephan Pachnicke (OFC, 2021)

Demonstration of Software-defined Key Management for Quantum Key Distribution Network. - Joo Yeon Cho; Jose-Juan Pedreno-Manresa; Sai Kireet Patri; Andrew Sergeev; Jörg-Peter Elbers; Helmut Griesser; Catherine White; Andrew Lord (OFC, 2021)

Black-Box Assessment of Optical Spectrum Services. - Kaida Kaeval; Jörg-Peter Elbers; Klaus Grobe; Marko Tikas; Tobias Fehenberger; Helmut Grießer; Gert Jervan (OFC, 2021)

Estimating Quality of Transmission in a Live Production Network using Machine Learning. - Jasper Müller; Tobias Fehenberger; Sai Kireet Patri; Kaida Kaeval; Helmut Griesser; Marko Tikas; Jörg-Peter Elbers (OFC, 2021)

Channel Performance Estimations with Extended Channel Probing. - Kaida Kaeval; Helmut Griesser; Klaus Grobe; Jörg-Peter Elbers; Marko Tikas; Gert Jervan (CoRR, 2021)

Reflective fiber fault detection and characterization using long short-term memory. - Khouloud Abdelli; Helmut Grießer; Peter Ehrle; Carsten Tropschug; Stephan Pachnicke (JOCN, 2021)

QoT assessment of the optical spectrum as a service in disaggregated network scenarios. - Kaida Kaeval; Tobias Fehenberger; Jim Zou; Sander Lars Jansen; Klaus Grobe; Helmut Griesser; Jörg-Peter Elbers; Marko Tikas; Gert Jervan (JOCN, 2021)

Federated Learning Approach for Lifetime Prediction of Semiconductor Lasers. - Khouloud Abdelli; Helmut Grießer; Stephan Pachnicke (OFC, 2022)

Concatenated GSNR Profiles for End-to-End Performance Estimations in Disaggregated Networks. - Kaida Kaeval; Jani Myyry; Klaus Grobe; Helmut Grießer; Gert Jervan (OFC, 2022)

A Hybrid CNN-LSTM Approach for Laser Remaining Useful Life Prediction. - Khouloud Abdelli; Helmut Griesser; Stephan Pachnicke (CoRR, 2022)

Optical Fiber Fault Detection and Localization in a Noisy OTDR Trace Based on Denoising Convolutional Autoencoder and Bidirectional Long Short-Term Memory. - Khouloud Abdelli; Helmut Griesser; Carsten Tropschug; Stephan Pachnicke (CoRR, 2022)

Convolutional Neural Networks for Reflective Event Detection and Characterization in Fiber Optical Links Given Noisy OTDR Signals. - Khouloud Abdelli; Helmut Griesser; Stephan Pachnicke (CoRR, 2022)

Reflective Fiber Faults Detection and Characterization Using Long-Short-Term Memory. - Khouloud Abdelli; Helmut Griesser; Peter Ehrle; Carsten Tropschug; Stephan Pachnicke (CoRR, 2022)

A Machine Learning-based Framework for Predictive Maintenance of Semiconductor Laser for Optical Communication. - Khouloud Abdelli; Helmut Griesser; Stephan Pachnicke (CoRR, 2022)

Degradation Prediction of Semiconductor Lasers using Conditional Variational Autoencoder. - Khouloud Abdelli; Helmut Griesser; Christian Neumeyr; Robert Hohenleitner; Stephan Pachnicke (CoRR, 2022)

Machine-learning-based anomaly detection in optical fiber monitoring. - Khouloud Abdelli; Joo Yeon Cho; Florian Azendorf; Helmut Griesser; Carsten Tropschug; Stephan Pachnicke (JOCN, 2022)

Characterization of the optical spectrum as a service. - Kaida Kaeval; Sander Lars Jansen; Florian Spinty; Klaus Grobe; Helmut Griesser; Tobias Fehenberger; Marko Tikas; Gert Jervan (JOCN, 2022)

QoT estimation using EGN-assisted machine learning for multi-period network planning. - Jasper Müller; Sai Kireet Patri; Tobias Fehenberger; Helmut Griesser; Jörg-Peter Elbers; Carmen Mas Machuca (JOCN, 2022)

Dataset for Optical fiber faults. - Khouloud Abdelli; Florian Azendorf; Carsten Tropschug; Helmut Griesser; Stephan Pachnicke; Joo Choo (IEEE DataPort, 2022)

An OTDR dataset for optical fiber monitoring. - Khouloud Abdelli; Helmut Griesser; Peter Ehrle; Carsten Tropschug; Stephan Pachnicke (IEEE DataPort, 2022)

Synthetic tunable edge-emitting laser reliability dataset. - Khouloud Abdelli; Helmut Griesser; Stephan Pachnicke (IEEE DataPort, 2022)

Reliability Data for Laser Lifetime Prediction. - Khouloud Abdelli; Danish Rafique; Helmut Griesser; Stephan Pachnicke (IEEE DataPort, 2022)

An OTDR event dataset. - Khouloud Abdelli; Carsten Tropschug; Helmut Griesser; Stephan Pachnicke (IEEE DataPort, 2022)

Fault Monitoring in Passive Optical Networks using Machine Learning Techniques. - Khouloud Abdelli; Carsten Tropschug; Helmut Griesser; Stephan Pachnicke (ICTON, 2023)

Branch Identification in Passive Optical Networks using Machine Learning. - Khouloud Abdelli; Carsten Tropschug; Helmut Grießer; Sander Jansen; Stephan Pachnicke (OFC, 2023)

Service Margins for Wide-Band Optical Spectrum Services Implemented in Long-Haul Raman-Enabled Networks. - Kaida Kaeval; Sai Kireet Patri; Jose-Juan Pedreno-Manresa; Klaus Grobe; Jörg-Peter Elbers; Helmut Griesser; Marko Tikas; Gert Jervan (OFC, 2023)

Employing Channel Probing to Derive End-of-Life Service Margins for Optical Spectrum Services. To appear in OPTICA Journal of Optical Communications and Networking. - Kaida Kaeval; Frank Slyne; Sebastian Troia; Eoin Kenny; Klaus Große; Helmut Griesser; Daniel C. Kilper; Marco Ruffini; Jose-Juan Pedreno-Manresa; Sai Kireet Patri; Gert Jervan (CoRR, 2023)

Comparison of Single-Wavelength and Multi-Wavelength Transponders in a Physical-layer-aware Network Planning Study. - Jasper Müller; Ognjen Jovanovic; Carmen Mas Machuca; Helmut Griesser; Tobias Fehenberger; Jörg-Peter Elbers (CoRR, 2023)

Branch Identification in Passive Optical Networks using Machine Learning. - Khouloud Abdelli; Carsten Tropschug; Helmut Griesser; Sander Lars Jansen; Stephan Pachnicke (CoRR, 2023)

Faulty branch identification in passive optical networks using machine learning. - Khouloud Abdelli; Carsten Tropschug; Helmut Griesser; Stephan Pachnicke (JOCN, 2023)

Employing channel probing to derive end-of-life service margins for optical spectrum services. - Kaida Kaeval; Frank Slyne; Sebastian Troia; Eoin Kenny; Klaus Grobe; Helmut Griesser; Daniel C. Kilper; Marco Ruffini; Jose-Juan Pedreno-Manresa; Sai Kireet Patri; Gert Jervan (J. Opt. Commun. Netw., 2023)

Quantum Key Management System with Dynamic Routing for Meshed QKD Networks. - Mario Wenning; Jonas Berl; Tobias Fehenberger; Ciarán Mullan; Helmut Grießer; Piotr Rydlichowski; Laurent Schmalen; Carmen Mas Machuca (OFC, 2024)

Upgrading strategies for long-haul quantum key distribution networks. - Mario Wenning; Maria Samonaki; Sai Kireet Patri; Tobias Fehenberger; Helmut Griesser; Carmen Mas Machuca (J. Opt. Commun. Netw., 2024)

Trust-Enhanced Quantum Key Management System for Meshed QKD Networks. - Jonas Berl; Mario Wenning; Ciarán Mullan; Helmut Grießer; Tobias Fehenberger (OFC, 2025)