Optical Filter Requirements for DWDM Transmission Systems with Kramers-Kronig Receivers. - Md Mosaddek Hossain Adib; Dario Pilori; Christoph Füllner; Wolfgang Freude; Christian Koos; Sebastian Randel (ECOC, 2018)

110-m THz Wireless Transmission at 100 Gbit/s Using a Kramers-Kronig Schottky Barrier Diode Receiver. - Tobias Harter; Christoph Füllner; Juned N. Kemal; Sandeep Ummethala; Miriam Brosi; Erik Bründermann; Wolfgang Freude; Sebastian Randel; Christian Koos (ECOC, 2018)

Transmission of 80-GBd 16-QAM over 300 km and Kramers-Kronig Reception Using a Low-Complexity FIR Hilbert Filter Approximation. - Christoph Füllner; Stefan Wolf 004; Juned N. Kemal; Joachim Lutz; Lars Altenhain; Rolf Schmid; Wolfgang Freude; Christian Koos; Sebastian Randel (OFC, 2018)

Colorless Coherent Passive Optical Network using a Frequency Comb Local Oscillator. - Md Mosaddek Hossain Adib; Juned N. Kemal; Christoph Füllner; Md Salek Mahmud; Abderrahim Ramdane; Christian Koos; Wolfgang Freude; Sebastian Randel (OFC, 2019)

Photonic-Electronic Ultra-Broadband Signal Processing: Concepts, Devices, and Applications. - Christian Koos; Sebastian Randel; Wolfgang Freude; Thomas Zwick; Johann-Christoph Scheytt; Jeremy Witzens; M. Walther; Tobias Harter; Sandeep Ummethala; Clemens Kieninger; Heiner Zwickel; Pablo Marin-Palomo; et al. (BCICTS, 2020)

A New Approach to Nonuniform Sampling of Bounded Atmospheric Turbulence Spectra. - Jonas Krimmer; Christoph Füllner; Sebastian Randel (ECOC, 2020)

SOH Mach-Zehnder Modulators for 100 GBd PAM4 Signaling with Sub-1 dB Phase-Shifter Loss. - Clemens Kieninger; Christoph Füllner; Heiner Zwickel; Yasar Kutuvantavida; Juned N. Kemal; Carsten Eschenbaum; Delwin L. Elder; Larry R. Dalton; Wolfgang Freude; Sebastian Randel; Christian Koos (OFC, 2020)

320 GHz Analog-to-Digital Converter Exploiting Kerr Soliton Combs and Photonic-Electronic Spectral Stitching. - Dengyang Fang; Daniel Drayß; G. Lihachev; Pablo Marin-Palomo; Huanfa Peng; Christoph Füllner; Artem Kuzmin; Junqiu Liu; Rui Ning Wang; Viacheslav Snigirev; Anton Lukashchuk; Mian Zhang; et al. (ECOC, 2021)

Ultra-Broadband Electrical Signal Generation and IM/DD Transmission of QAM Signals at Symbol Rates Up to 90 GBd. - Christoph Füllner; Dengyang Fang; Patrick Matalla; Wolfgang Freude; Christian Koos; Sebastian Randel (ECOC, 2021)

Kiglis: Smart Networks for Smart Cities. - Daniel Bogdoll; Patrick Matalla; Christoph Füllner; Christian Raack; Shi Li; Tobias Käfer; Stefan Orf; Marc René Zofka; Finn Sartoris; Christoph Schweikert; Thomas Pfeiffer 001; André Richter; et al. (ISC2, 2021)

Optical Arbitrary Waveform Measurement (OAWM) on the Silicon Photonic Platform. - Dengyang Fang; Andrea Zazzi; Juliana Müller; Daniel Drayß; Christoph Füllner; Pablo Marin-Palomo; Ali Tabatabaei Mashayekh; Arka Dipta Das; Maxim Weizel; Sergiy Gudyriev; Wolfgang Freude; Sebastian Randel; et al. (OFC, 2021)

Hardware Comparison of Feed-Forward Clock Recovery Algorithms for Optical Communications. - Patrick Matalla; Md Salek Mahmud; Christoph Füllner; Christian Koos; Wolfgang Freude; Sebastian Randel (OFC, 2021)

Slice-Less Optical Arbitrary Waveform Measurement (OAWM) in a Bandwidth of More Than 600 GHz. - Daniel Drayß; Dengyang Fang; Christoph Füllner; Grigorii Likhachev; Thomas Henauer; Yung Chen; Huanfa Peng; Pablo Marin-Palomo; Thomas Zwick; Wolfgang Freude; Tobias J. Kippenberg; Sebastian Randel; et al. (OFC, 2022)

200 GBd 16QAM Signals Synthesized by an Actively Phase-Stabilized Optical Arbitrary Waveform Generator (OAWG). - Thomas Henauer; Alban Sherifaj; Christoph Füllner; Wolfgang Freude; Sebastian Randel; Thomas Zwick; Christian Koos (OFC, 2022)

Real-Time Feedforward Clock Recovery for Optical Burst-Mode Transmission. - Patrick Matalla; Md Salek Mahmud; Christoph Füllner; Wolfgang Freude; Christian Koos; Sebastian Randel (OFC, 2022)

160-GBd Photonic-Electronic PAM Transmitter Based on IQ Multiplexing. - Christoph Füllner; Alban Sherifaj; Thomas Henauer; Dengyang Fang; Daniel Drayß; Wolfgang Freude; Christian Koos; Sebastian Randel (OECC/PSC, 2022)

From Algorithm to Implementation: Enabling High-Throughput CNN-Based Equalization on FPGA for Optical Communications. - Jonas Ney; Christoph Füllner; Vincent Lauinger; Laurent Schmalen; Sebastian Randel; Norbert Wehn (SAMOS, 2023)

Analysis of SBS-Induced Performance Penalties and Their Mitigation in 50G TDM-PON Downstream. - Christoph Füllner; Ning Wang; Fathima Shabana M. A; Dora van Veen; René Bonk (OFC, 2024)

CNN-Based Equalization for Communications: Achieving Gigabit Throughput with a Flexible FPGA Hardware Architecture. - Jonas Ney; Christoph Füllner; Vincent Lauinger; Laurent Schmalen; Sebastian Randel; Norbert Wehn (CoRR, 2024)

224 Gbit/s Coherent PON Downstream Using a Wavelength-Uncalibrated LO and Blind Locking During ONU Startup. - Md Mosaddek Hossain Adib; Christoph Füllner; Sandip Das; Michael Straub; Laurens Breyne; Dora van Veen; Rene Bonk (OFC, 2025)

Operator Trial of Quadruple PON Coexistence with 100G-PON, 50G-PON, 25GS-PON and XGS-PON. - Robert Borkowski; Kovendhan Vijayan; Suresh Chandrasekaran; John Valdez; Erwin Wardojo; Srimadhaven Thirumurthy; Vincent Houtsma; Christoph Füllner; Dora van Veen; Michael Straub; René Bonk; Chris Edwards; et al. (OFC, 2025)

Novel ML-Assisted Optical Equalization Photonic Integrated Circuit for High-Speed IM/DD Systems. - George Brestas; Giannis Kanakis; Maria Spyropoulou; Christophe Caillaud; Giancarlo Cerulo; Mokhtar Korti; Vladyslav Vakarin; Christoph Füllner; Robert Borkowski; Alessandro Aimone; Rene Bonk; Hercules Avramopoulos (OFC, 2025)

First 100G NRZ-OOK PON Demonstration with >31 dB Loss Budget and Coexistence Study over Field-Deployed Fiber. - Christoph Füllner; Dora van Veen; Michael Straub; Michiel Verplaetse; Robert Borkowski; Wouter Lanneer; Yannick Lefevre; Vincent Houtsma; René Bonk; Peter Desmet; Colin Wu; Jochen Maes (OFC, 2025)

DSP-Assisted In-Vivo Health Monitoring for ≥ 50G PON. - Christoph Füllner; Anuj K. Yadav; René Bonk (OFC, 2025)

Optical-access networks for smart sustainable cities: from network architecture to fiber deployment. - Md Mosaddek Hossain Adib; Patrick Matalla; Christoph Füllner; Shi Li; Elias G. Giacoumidis; Christian Raack; Ulrich Menne; Michael Straub; Tarek Saier; Christoph Schweikert; Stefan Orf; Martin Gontscharow; et al. (J. Opt. Commun. Netw., 2025)