Publications

Journal Articles (10)

• Adib, M. M. H.; Fuellner, C.; Peng, H.; Koos, C.; Freude, W.; Randel, S.
  Coherent time- and wavelength-division multiplexed point-to-multipoint optical access network using low-cost DFB lasers enabled by a frequency comb
  Opt. Express 32, 38516-38530 (2024) [DOI] more


• Drayss, D.; Fang, D.; Fuellner, C.; Freude, W.; Randel, S.; Koos, C.
  Non-sliced Optical Arbitrary Waveform Measurement (OAWM) Using a Silicon Photonic Receiver Chip.
  Journal of Lightwave Technology 1–19 (2024) [DOI] more


• Drayss, D.; Fang, D.; Fuellner, C.; Lihachev, G.; Henauer, T.; Chen, Y.; Peng, H.; Marin-Palomo, P.; Zwick, T.; Freude, W.; Kippenberg, T. J.; Randel, S.; Koos, C.
  Non-sliced optical arbitrary waveform measurement (OAWM) using soliton microcombs
  Optica 10, 888-896 (2023) [DOI] more


• Nesic, A.; Blaicher, M.; Marin-Palomo, P.; Fuellner, C.; Randel, S.; Freude, W.; Koos, C.
  Ultra-broadband polarisation beam splitters and rotators based on 3D-printed waveguides
  Light: Advanced Manufacturing 4 (2023) [DOI]


• Adib, M. M. H.; Fuellner, C.; Marin-Palomo, P.; Ramdane, A.; Koos, C.; Freude, W.; Randel, S.; Kemal, J. N.
  Colorless Coherent TDM-PON Based on a Frequency-Comb Laser
  J. Lightwave Technol. 40, 4287-4299 (2022) [DOI] more


• Fang, D.; Zazzi, A.; Mueller, J.; Drayss, D.; Fuellner, C.; Marin-Palomo, P.; Mashayekh, A. T.; Das, A. D.; Weizel, M.; Gudyriev, S.; Freude, W.; Randel, S.; Scheytt, J. C.; Witzens, J.; Koos, C.
  Optical Arbitrary Waveform Measurement Using Silicon Photonic Slicing Filters
  J. Lightwave Technol. 40, 1705-1717 (2022) [DOI]


• Muehlbrandt, S.; Harter, T.; Fuellner, C.; Ummethala, S.; Wolf, S.; Bacher, A.; Hahn, L.; Kohl, M.; Freude, W.; Koos, C.
  Field-effect silicon-plasmonic photodetector for coherent T-wave reception
  Opt. Express 29, 21586-21602 (2021) [DOI]


• Harter, T.; Fuellner, C.; Kemal, J. N.; Ummethala, S.; Steinmann, J. L.; Brosi, J.-M.; Hesler, J. L.; Bruendermann, E.; Mueller, A.-S.; Freude, W.; Randel, S.; Koos, C.
  Generalized Kramers–Kronig receiver for coherent terahertz communications
  Nature Photonics 14, 601-606 (2020) more


• Kieninger, C.; Fuellner, C.; Zwickel, H.; Kutuvantavida, Y.; Kemal, J. N.; Eschenbaum, C.; Elder, D. L.; Dalton, L. R.; Freude, W.; Randel, S.
  Silicon-Organic Hybrid (SOH) Mach-Zehnder Modulators for 100 GBd PAM4 Signaling With Sub-1 dB Phase-Shifter Loss
  Opt. Express 28, 24693-24707 (2020) [DOI]


• Fuellner, C.; Adib, M. M. H.; Wolf, S.; Kemal, J. N.; Freude, W.; Koos, C.; Randel, S.
  Complexity Analysis of the Kramers–Kronig Receiver
  J. Lightwave Technol. 37, 4295-4307 (2019) [DOI]

Conference Contributions (38)

• Fang, D.; Drayss, D.; Chen, Y.; Fuellner, C.; Peng, H.; Quint, A.; Valenziano, L.; Randel, S.; Zwick, T.; Freude, W.; Kippenberg, T. J.; Koos, C.
  Spectrally Sliced Optical Arbitrary Waveform Measurement (OAWM) Using a Photonic Multi-Chip Receiver Assembly
  Optical Fiber Communication Conference (OFC), Technical Digest Series (Opt. Express), March 24-28, Paper Tu2A.4. (2024) more


• Fang, D.; Peng, H.; Drayss, D.; Chen, Y.; Fuellner, C.; Sherifaj, A.; Lihachev, G.; Freude, W.; Randel, S.; Kippenberg, T. J.; Zwick, T.; Koos, C.
  Optical Arbitrary Waveform Generation (OAWG) Based on RF Injection-Locked Kerr Soliton Combs
  European Conference on Optical Communications (ECOC), Glasgow, UK, Oct. 1-5, Paper Th.B.2.6 (2023) [DOI] more


• Dittmer, J.; Tebart, J.; Fuellner, C.; Koos, C.; Stohr, A.; Randel, S.
  200 Gbit/s Wireless THz Transmission over 52m using Optoelectronic Signal Generation
  53rd European Microwave Conference (EuMC), Berlin, Germany, Sept. 19-21 , 134–137 (2023) [DOI] more


• Drayss, D.; Fang, D.; Sherifaj, A.; Peng, H.; Fuellner, C.; Henauer, T.; Lihachev, G.; Freude, W.; Randel, S.; Kippenberg, T. J.; Zwick, T.; Koos, C.
  Optical arbitrary waveform generation and measurement (OAWG/OAWM) enabling 320 GBd 32QAM transmission
  Conference on Lasers and Electro-Optics (CLEO), Technical Digest Series, Opt. Express, San Jose, USA, May 7–12, paper STh5C.8 (2023) [DOI] more


• Dittmer, J.; Fuellner, C.; Wagner, S.; Tessmann, A.; Koos, C.; Randel, S.
  Comparison of Electronic and Optoelectronic Signal Generation for Wireless THz Communications
  WSA & SCC 2023; 26th International ITG Workshop on Smart Antennas and 13th Conference on Systems, Communications and Coding, Braunschweig, Germany, Feb. 27 – March 03 (2023) more


• Drayss, D.; Fang, D.; Fuellner, C.
  Sliceless-Less Optical Arbitrary Waveform Measurement (OAWM) on a Silicon Photonic Chip
  European Conference on Optical Communication (ECOC), Basel, Switzerland, Sept. 18-22 , paper We4E.6 (2022)


• Eschenbaum, C.; Mertens, A.; Fuellner, C.; Kuzmin, A.; Schwarzenberger, A.; Kotz, A.; Ramann, G.; Chen, M.; Drisko, J.; Johnson, B.; Zyskind, J.; Marcelli, J.; Lebby, M.; Freude, W.; Randel, S.; Koos, C.
  Thermally Stable Silicon-Organic Hybrid (SOH) Mach-Zehnder Modulator for 140 GBd PAM4 Transmission With Sub-1 V Drive Signals
  European Conference on Optical Communication (ECOC 2022), Basel, Switzerland, Sept. 18-22 , Th3B.2 (2022) more


• Schwarzenberger, A.; Kuzmin, A.; Eschenbaum, C.; Fuellner, C.; Mertens, A.; Johnson, L. E.; Elder, D. L.; Hammond, S. R.; Dalton, L. R.; Randel, S.; Freude, W.; Koos, C.
  Cryogenic Operation of a Silicon-Organic Hybrid (SOH) Modulator at 50 Gbps and 4 K Ambient Temperature
  European Conference on Optical Communication (ECOC), Basel, Switzerland, Sept. 18-22 , Th3B.3 (2022) more


• Drayss, D.; Fang, D.; Fuellner, C.; Kuzmin, A.; Freude, W.; Randel, S.; Koos, C.
  Slice-Less Optical Arbitrary Waveform Measurement (OAWM) on a Silicon Photonic Chip
  European Conference on Optical Communication (ECOC), Basel, Switzerland, Sept. 18-22 , paper We4E.6 (2022) more


• Adib, M. M. H.; Fuellner, C.; Koos, C.; Freude, W.; Randel, S.
  Subcarrier-Based Coherent PON Architecture for a Converged Fiber Infrastructure in Smart-Cities
  Advanced Photonics Congress, July 24-28, Maastricht, Netherlands, Paper NeM3D.2 (2022) more


• Fuellner, C.; Sherifaj, A.; Henauer, T.; Fang, D.; Drayss, D.; Freude, W.; Koos, C.; Randel, S.
  160-GBd Photonic-Electronic PAM Transmitter Based on IQ Multiplexing
  OptoElectronics and Communications Conference (OECC), Toyama, Japan, Jul 03-06 , paper MB2-2 (2022) [DOI]


• Fuellner, C.; Sherifaj, A.; Henauer, T.; Fang, D.; Drayss, D.; Harter, T.; Gutema, T. Z.; Freude, W.; Randel, S.; Koos, C.
  Photonic-Electronic Arbitrary Waveform Generation up to 100 GHz Using Active Phase Stabilization
  Conference on Lasers and Electro-Optics (CLEO), San Jose, USA, May 15-20 , paper STh5M.3 (2022) [DOI] more


• Matalla, P.; Mahmud, M. S.; Fuellner, C.; Freude, W.; Koos, C.; Randel, S.
  Real-Time Feedforward Clock Recovery for Optical Burst-Mode Transmission
  Optical Fiber Communications Conference and Exhibition (OFC): March 06–10, San Diego, CA, USA , paper M2H.2 (2022) more


• Henauer, T.; Sherifaj, A.; Fuellner, C.; Freude, W.; Randel, S.; Zwick, T.; Koos, C.
  200 GBd 16QAM Signals Synthesized by an Actively Phase-Stabilized Optical Arbitrary Waveform Generator (OAWG)
  Optical Fiber Communication Conference (OFC), San Diego (CA), USA, March 06-10 , paper M2I.2 (2022) more


• Drayss, D.; Fang, D.; Fuellner, C.; Likhachev, G.; Henauer, T.; Chen, Y.; Peng, H.; Marin-Palomo, P.; Zwick, T.; Freude, W.; Kippenberg, T. J.; Randel, S.; Koos, C.
  Slice-Less Optical Arbitrary Waveform Measurement (OAWM) in a Bandwidth of More Than 600 GHz
  Optical Fiber Communications Conference and Exhibition (OFC), San Diego, CA, USA, March 06–10 , M2I.1 (2022) [DOI] more


• Fuellner, C.; Duenkel, O.; Marin-Palomo, P.; Koos, C.; Randel, S.
  Performance Requirements for Optical Frequency Comb Generators as Optical Power Supplies in Coherent SDM/DWDM Links
  ITG Workshop KT 3.1 „Modellierung photonischer Komponenten und Systeme”, Online-Workshop, Feb. 07 (2022)


• Fuellner, C.
  Kramers-Kronig reception – an attractive solution for future PONs?
  47th European Conference on Optical Communication (ECOC‘21), Bordeaux, France, Sept. 13-16 , Bordeaux, France (2021)


• Fang, D.; Drayss, D.; Likhachev, G.; Marin-Palomo, P.; Peng, H.; Fuellner, C.; Kuzmin, A.; Liu, J.; Wang, R.; Snigirev, V.; Lukashchuk, A.; Zhang, M.; Kharel, P.; Witzens, J.; Scheytt, C.; Freude, W.; Randel, S.; Kippenberg, T. J.; Koos, C.
  320 GHz Analog-to-Digital Converter Exploiting Kerr Soliton Combs and Photonic-Electronic Spectral Stitching
  European Conference on Optical Communication (ECOC 2021), Bordeaux, France, Sept. 13-16 , Th3C1-PD2.2 (2021) [DOI]


• Fuellner, C.; Fang, D.; Matalla, P.; Freude, W.; Koos, C.; Randel, S.
  Ultra-Broadband Electrical Signal Generation and IM/DD Transmission of QAM Signals at Symbol Rates Up to 90 GBd
  European Conference on Optical Communication (ECOC), Bordeaux, France, Sept. 13-16 , We1C1.5 (2021) [DOI] more


• Bogdoll, D.; Matalla, P.; Fuellner, C.; Raack, C.; Li, S.; Kaefer, T.; Orf, S.; Zofka, M. R.; Sartoris, F.; Schweikert, C.; Pfeiffer, T.; Richter, A.; Randel, S.; Bonk, R.
  Kiglis: Smart Networks for Smart Cities
  IEEE International Smart Cities Conference (ISC2), virtual conference, Sept. 07-10 , paper 13.5 (2021) [DOI] more


• Adib, M. M. H.; Fuellner, C.; Schwarzenberger, A.; Koos, C.; Freude, W.; Randel, S.
  Analysis of Burst Mode Reception in 100 Gbit/s Coherent Passive Optical Networks
  Advanced Photonics Congress, July 26-30, Online, Paper NeM1C.3 (2021) [DOI]


• Matalla, P.; Mahmud, M. S.; Fuellner, C.; Koos, C.; Freude, W.; Randel, S.
  Hardware Comparison of Feed-Forward Clock Recovery Algorithms for Optical Communications
  Optical Fiber Communication Conference (OFC), San Diego (CA), USA, June 06-11 , paper Th1A.10-1 (2021) more


• Fang, D.; Zazzi, A.; Mueller, J.; Drayss, D.; Fuellner, C.; Marin-Palomo, P.; Mashayekh, A. T.; Das, A. D.; Weizel, M.; Gudyriev, S.; Freude, W.; Randel, S.; Scheytt, J. C.; Witzens, J.; Koos, C.
  Optical Arbitrary Waveform Measurement (OAWM) on the Silicon Photonic Platform
  Optical Fiber Communication Conference (OFC), San Diego (CA), USA, June 06-11, paper F2E.6 (2021) more


• Adib, M. M. H.; Fuellner, C.; Randel, S.
  Comparison of Coarse Frequency-Offset Estimation Algorithms for Coherent Passive Optical Networks
  Photonic Networks; 22th ITG Symposium, online, May 19-20 , 1-4 VDE, Online (2021) more


• Krimmer, J.; Fuellner, C.; Randel, S.
  A New Approach to Nonuniform Sampling of Bounded Atmospheric Turbulence Spectra
  46th European Conference on Optical Communication (ECOC), Brussels, Belgium, Dec.06-10 , paper We1G-6 (2020) [DOI]


• Koos, C.; Randel, S.; Freude, W.; Zwick, T.; Scheytt, J. C.; Witzens, J.; Walther, M.; Harter, T.; Ummethala, S.; Kieninger, C.; Zwickel, H.; Marin-Palomo, P.; Muehlbrandt, S.; Fuellner, C.; Schaefer, J.; Gudyriev, S.; Zazzi, A.; Mueller, J.; Tessmann, A.
  Photonic-Electronic Ultra-Broadband Signal Processing: Concepts, Devices, and Applications
  IEEE BiCMOS and Compound Semiconductor Integrated Circuits and Technology Symposium (BCICTS), Monterey (CA) USA, Nov. 16-19 (2020) [DOI]


• Krimmer, J.; Fuellner, C.; Freude, W.; Koos, C.; Randel, S.
  Statistical Analysis of Free-Space-to-Fiber Coupling Under Atmospheric Turbulence
  Advanced Photonics Congress (Networks 2020), Washington, DC (D.C.), USA, July 13-16 , paper NeTu2B.5 (2020) [DOI] more


• Adib, M. M. H.; Marin-Palomo, P.; Kemal, J. N.; Fuellner, C.; Mahmud, M. S.; Ramdane, A.; Koos, C.; Freude, W.; Randel, S.
  Coherent TWDM-PON Downstream Architecture Based on a Chip-Scale QD-MLLD
  Advanced Photonics Congress (Networks), Optical Society of America, Washington, DC, USA, July 13-16 , paper NeM4B.3 (2020) [DOI] more


• Mahmud, M. S.; Kemal, J. N.; Adib, M. M. H.; Fuellner, C.; Schindler, A.; Runge, P.; Schell, M.; Freude, W.; Koos, C.; Randel, S.
  Optic-Electronic-Optic Interferometer: A First Experimental Demonstration
  Confference on Lasers and Electro-Optics (CLEO), Washington, DC (D.C.), USA, May 10–15 , paper SF1L.1 (2020) more


• Randel, S.; Harter, T.; Fuellner, C.; Ummethala, S.; Koos, C.; Freude, W.
  Opto-Electronic Terahertz Transceivers for Wireless 5G Backhaul
  Optical Fiber Communication Conference (OFC), San Diego (CA), USA, March 08–12 , paper M4I.6 (2020) (invited)


• Kieninger, C.; Fuellner, C.; Zwickel, H.; Kutuvantavida, Y.; Kemal, J. N.; Eschenbaum, C.; Freude, W.; Randel, S.; Koos, C.
  SOH Mach-Zehnder Modulators for 100 GBd PAM4 Signaling With Sub-1 dB Phase-Shifter Loss
  Optical Fiber Communication Conference (OFC'20), San Diego (CA), USA, March 08–12 , paper Th3C.3 (2020) more


• Krimmer, J.; Fuellner, C.; Freude, W.; Koos, C.; Randel, S.
  Statistical Modelling of Free-Space to Multi-Mode-Fiber Coupling Under Atmospheric Turbulence
  ITG Workshop KT31 „Modellierung photonischer Komponenten und Systeme”, KIT, IPQ, Karlsruhe, Germany, Feb. 18-19 , paper NeM4B.3 (2020) [DOI]


• Harter, T.; Fuellner, C.; Kemal, J. N.; Ummethala, S.; Steinmann, J. L.; Brosi, J.-M.; Hesler, J. L.; Bruendermann, E.; Freude, W.; Randel, S.; Koos, C.
  Generalized Kramers-Kronig Receiver for 16QAM Wireless THz Transmission at 110 Gbit/s
  45th European Conference on Optical Communication (ECOC), Dublin, Ireland, September 22-26 , paper Th.2.C.4 (2019) [DOI] more


• Adib, M. M. H.; Mahmud, M. S.; Kemal, J. N.; Marin-Palomo, P.; Fuellner, C.; Ramdane, A.; Koos, C.; Freude, W.; Randel, S.
  24 GBd DP-QPSK Upstream and Downstream Operation of a Colourless Coherent PON Using an MLLD-Based Frequency Comb
  45th European Conference on Optical Communication (ECOC), Dublin, Ireland, September 22-26 , paper M.1.F.2 (2019) [DOI] more


• Adib, M. M. H.; Kemal, J. N.; Fuellner, C.; Mahmud, M. S.; Koos, C.; Freude, W.; Randel, S.
  Colorless Coherent Passive Optical Network Using a Frequency Comb Local Oscillator
  Optical Fiber Communication Conference (OFC), San Diego (CA), USA, March 03.–07. , paper Th3F.4 (2019) more


• Adib, M. M. H.; Pilori, D.; Fuellner, C.; Freude, W.; Koos, C.; Randel, S.
  Optical Filter Requirements for DWDM Transmission Systems with Kramers-Kronig Receivers
  44th European Conference on Optical Communication (ECOC), Rome, Italy, September 23-27 , poster We2.34 (2018) [DOI] more


• Harter, T.; Fuellner, C.; Kemal, J. N.; Ummethala, S.; Brosi, J.-M.; Bruendermann, E.; Freude, W.; Randel, S.; Koos, C.
  110-m THz Wireless Transmission at 100 Gbit/s Using a Kramers-Kronig Schottky Barrier Diode Receiver
  44th European Conference on Optical Communication (ECOC'18), Rome, Italy, September 23-27 , paper Th3F.7 (2018) [DOI]


• Fuellner, C.; Wolf, S.; Kemal, J. N.; Lutz, J.; Altenhain, L.; Schmid, R.; Freude, W.; Koos, C.; Randel, S.
  Transmission of 80-GBd 16-QAM over 300 km and Kramers-Kronig reception using a low-complexity FIR Hilbert filter approximation
  Optical Fiber Communication Conference (OFC'18), San Diego (CA), USA, Marc 11–15 , paper W4E.3 (2018) [DOI] more

Books (1)

• Freude, W.; Fuellner, C.; Harter, T.; Koos, C.; Randel, S.
  Wireless THz Transmission Using a Kramers-Kronig Receiver
  In: Kürner T., Mittleman D.M., Nagatsuma T. (Eds): THz Communications. Springer Series in Optical Sciences, vol. 234. Springer, pp. 481-485, 234, Springer, ISBN 978-3-030-73738-2, (2022) [DOI],

Lectures (3)

• Fuellner, C.; Duenkel, O.; Marin-Palomo, P.; Kemal, J. N.; Freude, W.; Koos, C.; Randel, S.
  Performance Requirements for Optical Frequency Comb Generators as Optical Power Supplies in Coherent SDM/DWDM Links
  IEEE Summer Topicals Meeting Series (SUM’22), Cabo San Lucas, Mexico, Jul 11-13 (2022) (invited)


• Koos, C.; Kippenberg, T. J.; Randel, S.; Freude, W.; Zwick, T.; Scheytt, J. C.; Witzens, J.; Fang, D.; Drayss, D.; Harter, T.; Ummethala, S.; Kieninger, C.; Zwickel, H.; Marin-Palomo, P.; Fuellner, C.; Billah, M. R.; Blaicher, M.; Xu, Y.; Lauermann, M.; Skacel, S.; Lihachev, G.; Schaefer, J.; Gudyriev, S.; Zazzi, A.; Mueller, J.
  Terahertz Analogue-to-Digital Conversion Using Soliton Frequency Combs and Massively Parallel Spectrally Sliced Detection (TeraSlice)
  International Workshop on Mobile THz Systems (IWMTS), online event, Duisburg, Germany, July 5 – 7 (2021) (invited)


• Adib, M. M. H.; Kemal, J. N.; Fuellner, C.; Mahmud, M. S.; Koos, C.; Freude, W.
  Colorless Coherent TWDM-PON Architecture Based on a Frequency-Comb Local Oscillator
  Bell Labs Student Day, Stuttgart, Germany, November 13 (2018) (invited)

Workshops (3)

• Koos, C.; Kippenberg, T. J.; Randel, S.; Freude, W.; Zwick, T.; Scheytt, J. C.; Witzens, J.; Fang, D.; Drayss, D.; Harter, T.; Ummethala, S.; Kieninger, C.; Zwickel, H.; Marin-Palomo, P.; Fuellner, C.; Billah, M. R.; Blaicher, M.; Xu, Y.; Lauermann, M.; Skacel, S.; Lihachev, G.; Schaefer, J.; Gudyriev, S.; Zazzi, A.; Mueller, J.
  Terahertz Analogue-to-Digital Conversion Using Soliton Frequency Combs and Massively Parallel Spectrally Sliced Detection (TeraSlice)
  (2021)


• Fuellner, C.; Adib, M. M. H.; Randel, S.
  Neural Network Equalizers for Compensation of Chromatic Dispersion in IM/DD systems
  ITG Workshop Fachgruppe 3.1. „Modellierung photonischer Komponenten und Systeme“ Meiningen, Feb. 11.-12. (2019)


• Fuellner, C.; Adib, M. M. H.; Randel, S.
  Study on Complexity Trade-Offs for the Kramers-Kronig Receiver
  ITG Workshop Fachgruppe 5.3.1. „Modellierung photonischer Komponenten und Systeme“ Hamburg, 22.-23.02.2018 (2018)