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C

C. Koos

karlsruhe institute of technology

59H-index
619Paper Count
2.0WCitation Count
Published Papers 137
Publication Date
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Heterogeneously integrated lithium tantalate-on-silicon nitride modulators for high-speed communications
errNature Communications
IF15.7
err2026-02-28
err0
errOAAI
errJiachen Cai; Alexander Kotz; Hugo Larocque; Chengli Wang; Xinru Ji; Junyin Zhang; Daniel Drayss; Jiale Sun; Shuhang Zheng; Xin Ou; Christian Koos; Tobias J. Kippenberg
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Copper damascene process-based high-performance thin-film lithium tantalate modulators
errNature Communications
IF15.7
err2026-02-26
err0
errOAAI
errMengxin Lin; Zihan Li; Alexander Kotz; Hugo Larocque; Nikolai Kuznetsov; Jiale Sun; Yichi Zhang; Shuhang Zheng; Johann Riemensberger; Christian Koos; Tobias J. Kippenberg
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errSave
Inter-User Interference Analysis in a Point-to-Multipoint Sub-THz Wireless Communication Link
errIEEE Access
IF3.6
err2026-02-26
err0
errOAAI
errJoel Dittmer; Akanksha Bhutani; Christian Bremauer; Felix Beuthan; Josefine Seidel; Sandrine Wagner; Axel Tessmann; Thomas Zwick; Christian Koos; Sebastian Randel
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errSave
Design, Modeling, and Characterization of a Cascaded-Lens Antenna for 220–330 GHz With 51.1 dBi Gain
errIEEE Open Journal of Antennas and Propagation
IF3.6
err2026-02-09
err0
errOAAI
errJoel Dittmer; Akanksha Bhutani; Felix Beuthan; Jonas Krimmer; Thomas Zwick; Christian Koos; Sebastian Randel
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errSave
Advancing Liquid Biopsy: Whispering Gallery Mode Laser Detection of HER2 on Extracellular Vesicles
errLab Chip
IF0
err2025-11-18
err0
errOAAI
errSentayehu Fetene Wondimu; Richa Khanduri; John Atanga; Marc Hippler; Andreas Hofmann; Christoph Hussal; Daria Kohler; Sarah Kraemer; Uwe Bog; Tobias Wienhold; Meike Koenig; Sebastian Köber; Timo Mappes; Heinz Kalt; Jörg Lahann; Wolfgang Freude; Johnathan Sleeman; Athanasia Warnecke; Thalia Erbes; Ingolf Juhasz-Böss; Christian Koos; Irina Nazarenko
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errSave
Silicon-Organic Hybrid (SOH) Mach–Zehnder Modulators (MZM) for Single-Carrier IM/DD Line Rates of 500 Gbit/s and Beyond
errJournal of Lightwave Technology
IF4.8
err2025-10-27
err0
PREAI
errAdrian Schwarzenberger; Alexander Kotz; Dengyang Fang; Hend Kholeif; Carsten Eschenbaum; Lukas Grünewald; Christoph Wilhelm; Stefan Singer; Mohamed Kelany; Cheng Feng; Malte Martens; Adrian Mertens; Sidra Sarwar; Patrick Kern; Masis Sirim; Peter Erk; Artem Kuzmin; Yolita M. Eggeler; Stefan Bräse; Sebastian Randel; Wolfgang Freude; Christian Koos
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errSave
Optical arbitrary waveform generation (OAWG) using actively phase-stabilized spectral stitching
errLight: Science & Applications
IF0
err2025-09-29
err0
errOAAI
errDaniel Drayss; Dengyang Fang; Alban Sherifaj; Huanfa Peng; Christoph Füllner; Thomas Henauer; Grigory Lihachev; Lennart Schmitz; Tobias Harter; Wolfgang Freude; Sebastian Randel; Tobias J. Kippenberg; Thomas Zwick; Christian Koos
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errSave
Impact of Chromatic Dispersion on Oversampled Digital Clock Recovery in Direct-Detection Systems: Analysis and Solutions
errJournal of Lightwave Technology
IF4.8
err2025-09-21
err0
errOAAI
errPatrick Matalla; Christian Koos; Sebastian Randel
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errSave
320 GHz photonic-electronic analogue-to-digital converter (ADC) exploiting Kerr soliton microcombs
errlight science applications
IF0
err2025-07-08
err0
errOAAI
errDengyang Fang; Daniel Drayss; Huanfa Peng; Grigory Lihachev; Christoph Füllner; Artem Kuzmin; Pablo Marin-Palomo; Patrick Matalla; Prashanta Kharel; Rui Ning Wang; Johann Riemensberger; Mian Zhang; Jeremy Witzens; J. Christoph Scheytt; Wolfgang Freude; Sebastian Randel; Tobias J. Kippenberg; Christian Koos
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errSave
Hybrid Integration of a Beam-Steering Leaky-Wave Antenna and Power Amplifier MMIC Using UPD Printing in 220 to 325 GHz Range
errIEEE Open Journal of Antennas and Propagation
IF3.6
err2025-06-01
err0
errOAAI
errGeorg Gramlich; Elizabeth Bekker; Luca Valenziano; Joel Dittmer; Martin Roemhild; Holger Baur; Fabian Thome; Axel Tessmann; Michael Kuri; Tom Neerfeld; Andreas Stöhr; Sebastian Randel; Christian Koos; Norbert Fruehauf; Thomas Zwick; Akanksha Bhutani
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errSave
Extrusion printing of radio frequency coplanar waveguides with commercial dispensing equipment
errFLEXIBLE AND PRINTED ELECTRONICS
IF3.2
err2025-05-19
err0
PREAI
errAshif, Nowab Reza Md; Gengenbach, Ulrich; Maier, Pascal; Kotz, Alexander; Koos, Christian; Sieber, Ingo
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errSave
High-Performance Modulators Employing Organic Electro-Optic Materials on the Silicon Platform (vol 30, 3400222, 2024)
errIEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS
IF5.1
err2025-01-01
err0
PREAI
errFreude, Wolfgang; Kotz, Alexander; Kholeif, Hend; Schwarzenberger, Adrian; Kuzmin, Artem; Eschenbaum, Carsten; Mertens, Adrian; Sarwar, Sidra; Erk, Peter; Braese, Stefan; Koos, Christian
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On-Chip CMOS Shorted Bow-Tie Antenna Enhanced by 3D Printed Parasitic Resonator Operating Around 246 GHz
errIEEE ACCESS
IF3.6
err2025-01-01
err0
errOAAI
errHebeler, Joachim; Maier, Pascal; Kotz, Alexander; Koos, Christian; Bhutani, Akanksha; Zwick, Thomas
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errSave
Coherent time- and wavelength-division multiplexed point-to-multipoint optical access network using low-cost DFB lasers enabled by a frequency comb
errOPTICS EXPRESS
IF3.3
err2024-10-09
err2
errOAAI
errAdib, Md mosaddek hossain; Fuellner, Christoph; Peng, Huanfa; Koos, Christian; Freude, Wolfgang; Randel, Sebastian
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errSave
Non-Sliced Optical Arbitrary Waveform Measurement (OAWM) Using a Silicon Photonic Receiver Chip
errJOURNAL OF LIGHTWAVE TECHNOLOGY
IF4.8
err2024-07-15
err1
errOAAI
errDrayss, Daniel; Fang, Dengyang; Fuellner, Christoph; Freude, Wolfgang; Randel, Sebastian; Koos, Christian
errShare
errSave
High-Performance Modulators Employing Organic Electro-Optic Materials on the Silicon Platform
errIEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS
IF5.1
err2024-07-01
err4
errOAAI
errFreude, Wolfgang; Kotz, Alexander; Kholeif, Hend; Schwarzenberger, Adrian; Kuzmin, Artem; Eschenbaum, Carsten; Mertens, Adrian; Sarwar, Sidra; Erk, Peter; Brase, Stefan; Koos, Christian
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errSave
Non-sliced optical arbitrary waveform measurement (OAWM) using soliton microcombs
errOPTICA
IF8.5
err2023-07-12
err8
errOAAI
errDrayss, Daniel; Fang, Dengyang; Fullner, Christoph; Lihachev, Grigory; Henauer, Thomas; Chen, Yung; Peng, Huanfa; Marin-Palomo, Pablo; Zwick, Thomas; Freude, Wolfgang; Kippenberg, Tobias J.; Randel, Sebastian; Koos, Christian
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Sub-kHz-Linewidth External-Cavity Laser (ECL) With Si3N4 Resonator Used as a Tunable Pump for a Kerr Frequency Comb
errJOURNAL OF LIGHTWAVE TECHNOLOGY
IF4.8
err2023-06-01
err14
errOAAI
errMaier, Pascal; Chen, Yung; Xu, Yilin; Bao, Yiyang; Blaicher, Matthias; Geskus, Dimitri; Dekker, Ronald; Liu, Junqiu; Dietrich, Philipp-Immanuel; Peng, Huanfa; Randel, Sebastian; Freude, Wolfgang; Kippenberg, Tobias J.; Koos, Christian
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errSave
3D-printed facet-attached optical elements for beam shaping in optical phased arrays
errOPTICS EXPRESS
IF3.3
err2022-12-07
err9
errOAAI
errSinger, Stefan; Xu, Yilin; Skacel, Sebastian Tobias; Bao, Yiyang; Zwickel, Heiner; Maier, Pascal; Freter, Lukas; Dietrich, Philipp-Immanuel; Kaschel, Mathias; Menzel, Christoph; Randel, Sebastian; Freude, Wolfgang; Koos, Christian
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errSave
3D-printed facet-attached optical elements for connecting VCSEL and photodiodes to fiber arrays and multi-core fibers
errOPTICS EXPRESS
IF3.3
err2022-12-07
err7
errOAAI
errMaier, Pascal; Xu, Yilin; Trappen, Mareike; Lauermann, Matthias; Henniger-Ludwig, Alexandra; Kapim, Hermann; Kind, Torben; Dietrich, Philipp-Immanuel; Weber, Achim; Blaicher, Matthias; Wurster, Clemens; Randel, Sebastian; Freude, Wolfgang; Koos, Christian
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Research Directions

No research directions
Co-authors
Cooperation Journals
A
Alex K.‐Y. Jen
H-index: 160 · Papers: 1.3K
A
Alessandro M. Vannucchi
H-index: 109 · Papers: 1.2K
T
Tobias J. Kippenberg
H-index: 104 · Papers: 1.1K
D
D. Bimberg
H-index: 101 · Papers: 1.7K
M
Martin Wegener
H-index: 101 · Papers: 879
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