Robert Elschner

58 papers Journal 9Unranked 49

Year	Rank	Type	Title / Venue / Authors
2025	—	`conf`	Agile Sub-Terahertz to Terahertz Broadband Time-Domain Photonic Channel Sounder. WSA Ramez Askar, Garrit Schwanke, Milan Deumer, Alper Schultze, Nico Vieweg, Thomas Puppe, Sebastian Müller, Albrecht Neudecker, Oliver Stiewe, Robert B. Kohlhaas, Shahram Keyvaninia, Robert Elschner, Colja Schubert, Ronald Freund, Michael Peter, Taro Eichler, Wilhelm Keusgen
2025	—	`conf`	Experimental Validation of Partitioned MIMO Equalizer with Low-Resolution Interface for Mitigation of Mode-Group Coupling in SDM Transmission over 3-Mode Fiber. OFC Nicolas Braig-Christophersen, Aymeric Arnould, Robert Elschner, Carsten Schmidt-Langhorst, Ruben S. Luis, Pamir Oezsuna, Kallyan Das, Juan L. Moreno Morrone, Robert Emmerich, Kazuhiko Aikawa, Hideaki Furukawa, Georg Rademacher, Johannes K. Fischer, Colja Schubert, Ronald Freund
2025	—	`conf`	High-Capacity THz Wireless Transmission Supporting Future 6G Optical Networks. OFC Colja Schubert, Robert Elschner, Oliver Stiewe, In-Ho Baek, Simon Schütze, Andreas Maaßen, Kallyan Das, Robert B. Kohlhaas, Simon Nellen, Milan Deumer, Thomas Merkle, Axel Tessmann, Markus Rösch, Fred Meier, Frederik Bart, Ronald Freund, Martin Schell
2025	—	`conf`	Partitioned MIMO Equalization with Mode-Group Specific Interface Resolution for SDM Transmission Over 58.9 km 15-Mode Fiber. ECOC Nicolas Braig-Christophersen, Carsten Schmidt-Langhorst, Robert Elschner, Giammarco Di Sciullo, Menno van den Hout, Ruben S. Luis, Pierre Sillard, Cristian Antonelli, Chigo M. Okonkwo, Hideaki Furukawa, Georg Rademacher, Colja Schubert, Ronald Freund
2024	J	`jnl`	Optoelectronic Heterodyne THz Receiver for 100-300 GHz Communication Links. IEEE Access Milan Deumer, Oliver Stiewe, Simon Nellen, Sebastian Lauck, Steffen Breuer, Robert B. Kohlhaas, Colja Schubert, Robert Elschner, Ronald Freund, Martin Schell
2023	J	`jnl`	Design and Characterization of Dispersion-Tailored Silicon Strip Waveguides toward Wideband Wavelength Conversion. IEICE Trans. Electron. Hidenobu Muranaka, Tomoyuki Kato, Shun Okada, Tokuharu Kimura, Yu Tanaka, Tsuyoshi Yamamoto, Isaac Sackey, Gregor Ronniger, Robert Elschner, Carsten Schmidt-Langhorst, Colja Schubert, Takeshi Hoshida
2021	—	`conf`	Enabling S-C-L-Band Systems with Standard C-Band Modulator and Coherent Receiver using Nonlinear Predistortion. OFC Robert Emmerich, Matheus Ribeiro Sena, Robert Elschner, Carsten Schmidt-Langhorst, Isaac Sackey, Colja Schubert, Ronald Freund
2021	—	`conf`	Performance Evaluation of an Interband All-Optical Wavelength Converter for Cost-Effective High-Capacity Optical Networks. ECOC Isaac Sackey, Robert Elschner, Robert Emmerich, Carsten Schmidt-Langhorst, D. D. Groß, Georg Rademacher, Yoshinari Awaji, Hideaki Furukawa, Takemi Hasegawa, Colja Schubert, Ronald Freund
2021	—	`conf`	Semantic Security for Indoor THz-Wireless Communication. ISWCS Rebekka Schulz, Onur Günlü, Robert Elschner, Rafael F. Schaefer, Carsten Schmidt-Langhorst, Colja Schubert, Robert F. H. Fischer
2021	J	`jnl`	Semantic Security for Indoor THz-Wireless Communication. CoRR Rebekka Schulz, Onur Günlü, Robert Elschner, Rafael F. Schaefer, Carsten Schmidt-Langhorst, Colja Schubert, Robert F. H. Fischer
2020	—	`conf`	100 Gb/s Real-Time Transmission over a THz Wireless Fiber Extender using a Digital-Coherent Optical Modem. OFC Carlos Castro, Robert Elschner, Thomas Merkle, Colja Schubert, Ronald Freund
2020	—	`conf`	Characterization and Linearization of High Bandwidth Integrated Optical Transmitter Modules. ECOC Markus Nölle, M. Sezer Erkilinç, Robert Emmerich, Carsten Schmidt-Langhorst, Robert Elschner, Colja Schubert
2020	J	`jnl`	Data Converter Interleaving: Current Trends and Future Perspectives. IEEE Commun. Mag. Christian Schmidt, Hiroshi Yamazaki, Gregory Raybon, Peter Schvan, Erwan Pincemin, S. J. Ben Yoo, Daniel J. Blumenthal, Takayuki Mizuno, Robert Elschner
2020	J	`jnl`	Experimental Demonstrations of High-Capacity THz-Wireless Transmission Systems for Beyond 5G. IEEE Commun. Mag. Carlos Castro, Robert Elschner, Thomas Merkle, Colja Schubert, Ronald Freund
2020	—	`conf`	Hybrid fiber-optical/THz-wireless link transmission using low-cost IM/DD optics. OFC Francisco Rodrigues, Ricardo Ferreira, Carlos Castro, Robert Elschner, Thomas Merkle, Colja Schubert, António Luis Jesus Teixeira
2019	—	`conf`	100 Gbit/s Terahertz-Wireless Real-Time Transmission Using a Broadband Digital-Coherent Modem. 5G World Forum Carlos Castro, Robert Elschner, Thomas Merkle, Colja Schubert
2019	—	`conf`	32 GBd 16QAM Wireless Transmission in the 300 GHz Band using a PIN Diode for THz Upconversion. OFC Carlos Castro, Simon Nellen, Robert Elschner, Isaac Sackey, Robert Emmerich, Thomas Merkle, Björn Globisch, David de Felipe, Colja Schubert
2019	—	`conf`	64-GBd DP-Bipolar-8ASK Transmission Over 120 km SSMF Employing a Monolithically Integrated Driver and MZM in 0.25-μm SiGe BiCMOS Technology. OFC Gilda Raoof Mehrpoor, Carsten Schmidt-Langhorst, Benjamin Wohlfeil, Robert Elschner, Danish Rafique, Robert Emmerich, Annika Dochhan, Iria Garcia Lopez, Pedro Rito, Despoina Petousi, Dietmar Kissinger, Lars Zimmermann, Colja Schubert, Bernhard Schmauss, Michael Eiselt, Jörg-Peter Elbers
2019	—	`conf`	Analysis of Joint Impairment Mitigation in a Hybrid Optic-THz Transmission System. SPAWC Carlos Castro, Robert Elschner, Colja Schubert
2019	—	`conf`	Ethernet Transmission over a 100 Gb/s Real-Time Terahertz Wireless Link. GLOBECOM Workshops Carlos Castro, Robert Elschner, José Machado, Thomas Merkle, Colja Schubert, Ronald Freund
2019	—	`conf`	Experimental Validation of Coherent DSP for Combined Fibre-Optical / Terahertz-Wireless Links. ISWCS Carlos Castro, Robert Elschner, Thomas Merkle, Colja Schubert
2018	—	`conf`	Any-to-Any Signal Frequency Shifting Across Entire C-Band Using Continuously Tuneable Optical Frequency Shifter. ECOC Tomoyuki Kato, Shigeki Watanabe, Takahito Tanimura, Carsten Schmidt-Langhorst, Isaac Sackey, Robert Elschner, Colja Schubert, Takeshi Hoshida
2018	—	`conf`	Distributed Aggregation and Reception of a 400-Gb/s Net Rate Superchannel in a Single-Photodiode 110-GHz Kramers-Kronig Receiver. OFC Isaac Sackey, Carsten Schmidt-Langhorst, Robert Emmerich, Robert Elschner, Tomoyuki Kato, Takahito Tanimura, Shigeki Watanabe, Takeshi Hoshida, Colja Schubert
2018	—	`conf`	Fiber-Optic Frequency Shifting of THz-Range WDM Signal Using Orthogonal Pump-Signal Polarization Configuration. OFC Tomoyuki Kato, Shigeki Watanabe, Takahito Tanimura, Robert Elschner, Carsten Schmidt-Langhorst, Colja Schubert, Takeshi Hoshida
2018	—	`conf`	Improving Achievable Information Rates of 64-GBd PDM-64QAM by Nonlinear Transmitter Predistortion. OFC Robert Elschner, Robert Emmerich, Carsten Schmidt-Langhorst, Felix Frey, Pablo Wilke Berenguer, Johannes K. Fischer, Helmut Grießer, Danish Rafique, Jörg-Peter Elbers, Colja Schubert
2018	J	`jnl`	Terahertz Technologies to Deliver Optical Network Quality of Experience in Wireless Systems Beyond 5G. IEEE Commun. Mag. Alexandros-Apostolos A. Boulogeorgos, Angeliki Alexiou, Thomas Merkle, Colja Schubert, Robert Elschner, Alexandros Katsiotis, Panagiotis Stavrianos, Dimitrios Kritharidis, Panteleimon-Konstantinos Chartsias, Joonas Kokkoniemi, Markku J. Juntti, Janne J. Lehtomäki, António L. J. Teixeira, Francisco Rodrigues
2018	J	`jnl`	Terahertz Technologies to Deliver Optical Network Quality of Experience in Wireless Systems Beyond 5G. CoRR Alexandros-Apostolos A. Boulogeorgos, Angeliki Alexiou, Thomas Merkle, Colja Schubert, Robert Elschner, Alexandros Katsiotis, Panagiotis Stavrianos, Dimitrios Kritharidis, Panteleimon-Konstantinos Chartsias, Joonas Kokkoniemi, Markku J. Juntti, Janne J. Lehtomäki, António L. J. Teixeira, Francisco Rodrigues
2018	J	`jnl`	Wireless Terahertz System Architectures for Networks Beyond 5G. CoRR Alexandros-Apostolos A. Boulogeorgos, Angeliki Alexiou, Dimitrios Kritharidis, Alexandros Katsiotis, Georgia D. Ntouni, Joonas Kokkoniemi, Janne J. Lehtomäki, Markku J. Juntti, Dessy Yankova, Ahmed Mokhtar, Jean-Charles Point, José Machado, Robert Elschner, Colja Schubert, Thomas Merkle, Ricardo Ferreira, Francisco Rodrigues, José Lima
2017	—	`conf`	112 Gb/s PDM-PAM4 Generation and 80 km Transmission Using a Novel Monolithically Integrated Dual-Polarization Electro-Absorption Modulator InP PIC. ECOC Moritz Baier, Francisco M. Soares, Zhennan Zheng, Carsten Schmidt-Langhorst, Robert Elschner, Felix Frey, Marko Gruner, Johannes Karl Fischer, Colja Schubert, Martin Moehrle, Norbert Grote, Martin Schell
2017	—	`conf`	Colorless C-band WDM system enabled by coherent reception of 56-GBd PDM-16QAM using an high-bandwidth ICR with TIAs. OFC Robert Emmerich, Robert Elschner, Carsten Schmidt-Langhorst, Gijs van Elzakker, Jan Hoffmann, Andreas Umbach, Colja Schubert
2017	—	`conf`	Continuously tunable optical frequency shift of 1.6-Tb/s superchannel up to THz-range by polarization switched frequency conversion. OFC Tomoyuki Kato, Shigeki Watanabe, Takahito Tanimura, Thomas Richter, Robert Elschner, Carsten Schmidt-Langhorst, Colja Schubert, Takeshi Hoshida
2017	—	`conf`	Fiber Nonlinearity Mitigation in 800-km Transmission of a 1.6-Tb/s Superchannel Using Waveband-Shift-Free Optical Phase Conjugation. ECOC Carsten Schmidt-Langhorst, Isaac Sackey, Robert Elschner, Tomoyuki Kato, Takahito Tanimura, Shigeki Watanabe, Takeshi Hoshida, Colja Schubert
2017	—	`conf`	Novel wavelength-shift-free optical phase conjugator used for fiber nonlinearity mitigation in 200-Gb/s PDM-16QAM transmission. OFC Isaac Sackey, Robert Elschner, Carsten Schmidt-Langhorst, Tomoyuki Kato, Takahito Tanimura, Shigeki Watanabe, Takeshi Hoshida, Colja Schubert
2016	—	`conf`	In-line optical signal multiplexing by polarization-insensitive fiber frequency conversion. OFC Tomoyuki Kato, Takahito Tanimura, Takeshi Hoshida, Thomas Richter, Robert Elschner, Carsten Schmidt-Langhorst, Colja Schubert, Shigeki Watanabe
2015	—	`conf`	5 Gbit/s real-time processing using π/4-shift DQPSK for bidirectional radio-over-fibre system. ICTON Kai Habel, Luz Fernandez del Rosal, Stefan Weide, Jonas Hilt, Volker Jungnickel, Robert Elschner, Colja Schubert, Felix Frey, Johannes Karl Fischer, Ronald Freund
2015	—	`conf`	Broadband coherent-optical add/drop multiplexing over 400-GHz bandwidth by fiber frequency conversion. OFC Tomoyuki Kato, Takahito Tanimura, Thomas Richter, Carsten Schmidt-Langhorst, Robert Elschner, Colja Schubert, Shigeki Watanabe
2015	—	`conf`	Distributed 1-Tb/s all-optical aggregation capacity in 125-GHz optical bandwidth by frequency conversion in fiber. ECOC Thomas Richter, Carsten Schmidt-Langhorst, Robert Elschner, Lutz Molle, Saleem Alreesh, Tomoyuki Kato, Takahito Tanimura, Shigeki Watanabe, Johannes Karl Fischer, Colja Schubert
2015	—	`conf`	Experimental analysis of nonlinear interference noise in heterogeneous flex-grid WDM transmission. ECOC Carsten Schmidt-Langhorst, Robert Elschner, Felix Frey, Robert Emmerich, Colja Schubert
2015	—	`conf`	Generation of ultra-dense superchannels using frequency conversion in optical fibers. OFC Thomas Richter, Carsten Schmidt-Langhorst, Robert Elschner, Tomoyuki Kato, Takahito Tanimura, Shigeki Watanabe, Colja Schubert
2015	—	`conf`	Investigation of CAZAC sequences for data-aided channel estimation considering nonlinear optical transmission. OFC Markus Nolle, Felix Frey, Robert Elschner, Carsten Schmidt-Langhorst, Johannes K. Fischer, Colja Schubert
2015	—	`conf`	Non-reciprocal gain due to counter-propagating pumps in a polarization-independent FOPA with diversity loop. ECOC Isaac Sackey, Mahmoud Jazayerifar, Robert Elschner, Thomas Richter, Christian Meuer, Klaus Petermann, Colja Schubert
2015	—	`conf`	Spatially distributed aggregation of a polarization-division multiplexed superchannel by frequency conversion in fiber. ECOC Thomas Richter, Robert Elschner, Carsten Schmidt-Langhorst, Tomoyuki Kato, Takahito Tanimura, Shigeki Watanabe, Colja Schubert
2015	—	`conf`	Versatile coherent in-line 4-, 16-, 32-QAM subcarrier add/drop-multiplexing by optical frequency conversion. OFC Carsten Schmidt-Langhorst, Thomas Richter, Robert Elschner, Tomoyuki Kato, Takahito Tanimura, Shigeki Watanabe, Colja Schubert
2014	—	`conf`	Characterization of a fiber-optical parametric amplifier in a 5 × 28-GBd 16-QAM DWDM system. OFC Isaac Sackey, Robert Elschner, Markus Nölle, Thomas Richter, Lutz Molle, Christian Meuer, Mahmoud Jazayerifar, Stefan Warm, Klaus Petermann, Colja Schubert
2014	—	`conf`	Coherent in-line substitution of OFDM subcarriers using fiber-frequency conversion and free-running lasers. OFC Thomas Richter, Carsten Schmidt-Langhorst, Robert Elschner, Tomoyuki Kato, Takahito Tanimura, Shigeki Watanabe, Colja Schubert
2014	—	`conf`	Coherent reception and 126 GHz bandwidth digital signal processing of CO-OFDM superchannel generated by fiber frequency conversion. OFC Takahito Tanimura, Tomoyuki Kato, Ryo Okabe, Shoichiro Oda, Thomas Richter, Robert Elschner, Carsten Schmidt-Langhorst, Colja Schubert, Jens C. Rasmussen, Shigeki Watanabe
2014	—	`conf`	Design and performance evaluation of an OPC device using a dual-pump polarization-independent FOPA. ECOC Isaac Sackey, Francesco Da Ros, Thomas Richter, Robert Elschner, Mahmoud Jazayerifar, Christian Meuer, Christophe Peucheret, Klaus Petermann, Colja Schubert
2014	—	`conf`	Distributed generation of a 400-Gb/s Nyquist 16QAM dense superchannel by fiber-frequency conversion. OFC Thomas Richter, Carsten Schmidt-Langhorst, Robert Elschner, Tomoyuki Kato, Shigeki Watanabe, Colja Schubert
2014	—	`conf`	Efficient real-time implementation of a channelizer filter with a weighted overlap-add approach. ECOC Felix Frey, Robert Elschner, Christoph Kottke, Colja Schubert, Johannes K. Fischer
2014	—	`conf`	Impact of SBS on polarization-insensitive single-pump optical parametric amplifiers based on a diversity loop scheme. ECOC Mahmoud Jazayerifar, Isaac Sackey, Robert Elschner, Stefan Warm, Christian Meuer, Colja Schubert, Klaus Petermann
2014	—	`conf`	Kerr nonlinearity compensation in a 5×28-GBd PDM 16-QAM WDM system using fiber-based optical phase conjugation. ECOC Francesco Da Ros, Isaac Sackey, Robert Elschner, Thomas Richter, Christian Meuer, M. Nolle, Mahmoud Jazayerifar, Klaus Petermann, Christophe Peucheret, Colja Schubert
2014	—	`conf`	Performance comparison of different 8QAM constellations for the use in flexible optical networks. OFC Markus Nölle, Felix Frey, Robert Elschner, Carsten Schmidt-Langhorst, Antonio Napoli, Colja Schubert
2014	—	`conf`	Tolerances for add/drop operation of a coherent multiplexing node based on fiber frequency conversion. ECOC Thomas Richter, Carsten Schmidt-Langhorst, Robert Elschner, Tomoyuki Kato, Takahito Tanimura, Shigeki Watanabe, Colja Schubert
2014	—	`conf`	Transmission of 512SP-QAM Nyquist-WDM signals. ECOC Johannes Karl Fischer, Carsten Schmidt-Langhorst, Saleem Alreesh, Robert Elschner, Felix Frey, Pablo Wilke Berenguer, Lutz Molle, Markus Nolle, Colja Schubert
2013	—	`conf`	Characterization of polarization insensitive FOPA using a polarization-maintaining highly non-linear fiber. OFC/NFOEC Isaac Sackey, Thomas Richter, Christian Meuer, Robert Elschner, Mahmoud Jazayerifar, Klaus Petermann, Colja Schubert
2013	—	`conf`	Narrow guard-band distributed Nyquist-WDM using fiber frequency conversion. OFC/NFOEC Thomas Richter, Robert Elschner, Carsten Schmidt-Langhorst, Tomoyuki Kato, Shigeki Watanabe, Colja Schubert
2013	—	`conf`	Nonlinear transmission of 6PolSK-QPSK signals using coded modulation and digital back propagation. OFC/NFOEC Takahito Tanimura, Saleem Alreesh, Johannes Karl Fischer, Carsten Schmidt-Langhorst, Felix Frey, Christian Meuer, Robert Elschner, Lutz Molle, Colja Schubert
2010	J	`jnl`	System Impact of Cascaded All-Optical Wavelength Conversion of D(Q)PSK Signals in Transparent Optical Networks. J. Networks Robert Elschner, Christian-Alexander Bunge, Klaus Petermann