| ZnO/CdS/CuInSe2 thin‐film solar cells with improved performance L Stolt, J Hedström, J Kessler, M Ruckh, KO Velthaus, HW Schock Applied Physics Letters 62 (6), 597-599, 1993 | 530 | 1993 |
| Luminescence properties of SrS:Ce3+ B Hüttl, U Troppenz, KO Velthaus, CR Ronda, RH Mauch Journal of applied physics 78 (12), 7282-7288, 1995 | 76 | 1995 |
| Solar cells based on CuIn (Se, S) 2 T Walter, A Content, KO Velthaus, HW Schock Solar Energy Materials and Solar Cells 26 (4), 357-368, 1992 | 66 | 1992 |
| Chemical bath deposition of CdS on CuInSe2, etching effects and growth kinetics J Kessler, KO Velthaus, M Ruckh, R Laichinger, HW Schock, D Lincot, ... Sixth Int. PVSEC, 1005-1010, 1992 | 63 | 1992 |
| High efficiency SrS, SrSe: CeCl3 based thin film electroluminescent devices RH Mauch, KO Velthaus, G Bilger, HW Schock Journal of crystal growth 117 (1-4), 964-968, 1992 | 50 | 1992 |
| 1.55 μm Mach-Zehnder Modulators on InP for optical 40/80 Gbit/s transmission networks HN Klein, H Chen, D Hoffmann, S Staroske, AG Steffan, KO Velthaus 2006 International Conference on Indium Phosphide and Related Materials …, 2006 | 49 | 2006 |
| High performance InP-based Mach-Zehnder modulators for 10 to 100 Gb/s optical fiber transmission systems KO Velthaus, M Hamacher, M Gruner, T Brast, R Kaiser, K Prosyk, ... IPRM 2011-23rd International Conference on Indium Phosphide and Related …, 2011 | 35 | 2011 |
| Multi-source reactive deposition process for the preparation of blue light emitting phosphor layers for AC TFEL devices KO Velthaus, RH Mauch, TA Oberacker, HW Schock, SS Sun, ... US Patent 5,505,986, 1996 | 35 | 1996 |
| Tunable InP-based optical IQ modulator for 160 Gb/s K Prosyk, T Brast, M Gruner, M Hamacher, D Hoffmann, R Millett, ... European Conference and Exposition on Optical Communications, Th. 13. A. 5, 2011 | 34 | 2011 |
| High performance 40ghz inp mach-zehnder modulator K Prosyk, A Ait-Ouali, C Bornholdt, T Brast, M Gruner, M Hamacher, ... Optical Fiber Communication Conference, OW4F. 7, 2012 | 33 | 2012 |
| 45 GHz bandwidth travelling wave electrode Mach-Zehnder modulator with integrated spot size converter D Hoffmann, S Staroske, KO Velthaus International Conference on Indium Phosphide and Related Materials, 585-588, 2004 | 30 | 2004 |
| Monolithic optoelectronic TWE-component structure for high frequencies and low optical insertion loss K Prosyk, R Kaiser, KO Velthaus US Patent 9,182,546, 2015 | 26 | 2015 |
| Flip-Chip Integration of InP and SiN M Theurer, M Moehrle, A Sigmund, KO Velthaus, RM Oldenbeuving, ... IEEE Photonics Technology Letters 31 (3), 273-276, 2019 | 22 | 2019 |
| Flip-chip integration of InP to SiN photonic integrated circuits M Theurer, M Moehrle, A Sigmund, KO Velthaus, RM Oldenbeuving, ... Journal of Lightwave Technology 38 (9), 2630-2636, 2020 | 20 | 2020 |
| Low switching voltage Mach–Zehnder modulator monolithically integrated with DFB laser for data transmission up to 107.4 Gb/s S Lange, M Gruner, C Meuer, R Kaiser, M Hamacher, KO Velthaus, ... Journal of Lightwave Technology 34 (2), 401-406, 2015 | 19 | 2015 |
| SrS: Ce, Mn, Cl—a novel efficient EL phosphor B Hüttl, KO Velthaus, U Troppenz, R Herrmann, RH Mauch Journal of crystal growth 159 (1-4), 943-946, 1996 | 17 | 1996 |
| Mach-Zehnder modulator arrangement and method for operating a Mach-Zehnder modulator arrangement KO Velthaus US Patent 9,140,957, 2015 | 16 | 2015 |
| Electro-optical co-design to minimize power consumption of a 32 GBd optical IQ-transmitter using InP MZ-modulators N Wolf, L Yan, JH Choi, T Kapa, S Wunsch, R Klotzer, KO Velthaus, ... 2015 IEEE Compound Semiconductor Integrated Circuit Symposium (CSICS), 1-4, 2015 | 14 | 2015 |
| Chemical bath deposition of CdS on CuInSe_2 combining dry and wet processes for high efficiency thin film solar cells D Lincot Proc. 11th European Photovoltaic Solar Energy Conference, 1992, 870-873, 1992 | 14 | 1992 |
| Low power InP-based monolithic DFB-laser IQ modulator with SiGe differential driver for 32-GBd QPSK modulation S Lange, N Wolf, M Gruner, L Yan, R Kaiser, KO Velthaus, JH Choi, ... Journal of Lightwave Technology 34 (8), 1678-1682, 2016 | 13 | 2016 |
Martin SchellInstitute Head, Fraunhofer HHI, Berlin, GermanyVerified email at hhi.fraunhofer.de
