@inproceedings{42800,
  abstract     = {{In this paper we present a new system architecture for software-defined radio / radar with optical signal distribution. The proposed architecture allows to transmit the optical carrier and an arbitrary IQ signal on the same fiber from a base station to wireless transmitters using a single laser. Furthermore, we can reuse parts, and under special conditions, also the complete optical output of the base station for the IQ return path from the wireless receiver frontends to the base station. Avoiding multiple lasers and fibers for the distribution of the carrier and arbitrary signal from the base station to the frontend, and avoiding the laser diode for the IQ return path from receiver frontends to the base station reduces the hardware effort significantly. Finally, the system architecture allows to integrate all components of the optoelectronic wireless frontend in a single chip using silicon photonics technology.}},
  author       = {{Kruse, Stephan and Kneuper, Pascal and Schwabe, Tobias and Meinecke, Marc-Michael and Kurz, Heiko G. and Scheytt, J. Christoph}},
  location     = {{Fraunhofer-Forum Berlin, Germany}},
  title        = {{{Distributed System Architecture for Software-Defined Radio / Radar with Optical Signal Distribution}}},
  doi          = {{10.23919/IRS57608.2023.10172470}},
  year         = {{2023}},
}

@inproceedings{47124,
  author       = {{Kruse, Stephan and Meinecke, Marc-Michael and Kneuper, Pascal and Schwabe, Tobias and Kurz, Heiko G. and Scheytt, J. Christoph}},
  booktitle    = {{2023 20th European Radar Conference (EuRAD)}},
  location     = {{Berlin}},
  title        = {{{Analysis and Simulation of a Coherent FMCW Lidar-Photonic Radar Combined Sensor System for Large Aperture Phased Array MIMO}}},
  doi          = {{10.23919/EuRAD58043.2023.10289439}},
  year         = {{2023}},
}

@article{47126,
  author       = {{Kruse, Stephan and Greitens, Jan C. and Schwabe, Tobias and Kneuper, Pascal and Kurz, Heiko G. and Scheytt, J. Christoph}},
  journal      = {{IEEE Microwave and Wireless Technology Letters }},
  title        = {{{A Narrowband Four-Quadrant Electro-Optical Mixer for Microwave Photonics}}},
  doi          = {{10.1109/LMWT.2023.3315315}},
  year         = {{2023}},
}

@inproceedings{42804,
  abstract     = {{This paper presents a method to model monolithically integrated photonic radar transceiver (TRX) with optical local oscillator (LO) distribution in silicon germanium (SiGe) electronic photonic integrated circuits (EPICs). The model proposed approximates the behavior of the nonlinear scattering (S)-parameters and noise figure of each building block of the TRX chipset by Laplace polynomials and hyperbolic tangent functions. The modular approach of the model allows to optimize hardware components with respect to the entire TRX system, and fault identification with reduced computational effort.
The proposed method is validated using the first monolithically integrated photonic radar transceiver chipset and shows excellent agreement with the post layout simulation results and, including the photodiode (PD) bandwidth (BW) degradation, also with the measurements.
}},
  author       = {{Kruse, Stephan and Schwabe, Tobias and Kneuper, Pascal and Meinecke, Marc-Michael and Kurz, Heiko G. and Scheytt, J. Christoph}},
  location     = {{Fraunhofer-Forum Berlin, Germany}},
  title        = {{{Nonlinear S-Parameter Behavioral Model of a Photonic Radar Transceiver Chipset for Automotive Applications}}},
  doi          = {{10.23919/IRS57608.2023.10172395}},
  year         = {{2023}},
}

@inproceedings{47064,
  author       = {{Iftekhar, Mohammed and Nagaraju, Harshan and Kneuper, Pascal and Sadiye, Babak and Müller, Wolfgang and Scheytt, J. Christoph}},
  booktitle    = {{BCICTS 2023 IEEE BiCMOS and Compound Semiconductor Integrated Circuits and Technology Symposium}},
  location     = {{MONTEREY, CALIFORNIA, USA}},
  title        = {{{A 28-Gb/s 27.2 mW NRZ Full-Rate Bang-Bang Clock and Data Recovery in 22 nm FD-SOI CMOS Technology }}},
  year         = {{2023}},
}

@article{61252,
  abstract     = {{<jats:title>Abstract</jats:title><jats:p>The biexciton‐exciton emission cascade commonly used in quantum‐dot systems to generate polarization entanglement yields photons with intrinsically limited indistinguishability. In the present work, it focuses on the generation of pairs of photons with high degrees of polarization entanglement and simultaneously high indistinguishability. It achieves this goal by selectively reducing the biexciton lifetime with an optical resonator. It demonstrates that a suitably tailored circular Bragg reflector fulfills the requirements of sufficient selective Purcell enhancement of biexciton emission paired with spectrally broad photon extraction and twofold degenerate optical modes. The in‐depth theoretical study combines (i) the optimization of realistic photonic structures solving Maxwell's equations from which model parameters are extracted as input for (ii) microscopic simulations of quantum‐dot cavity excitation dynamics with full access to photon properties. It reports non‐trivial dependencies on system parameters and use the predictive power of the combined theoretical approach to determine the optimal range of Purcell enhancement that maximizes indistinguishability and entanglement to near unity values, here specifically for the telecom C‐band at 1550 nm.</jats:p>}},
  author       = {{Bauch, David and Siebert, Dustin and Jöns, Klaus D. and Förstner, Jens and Schumacher, Stefan}},
  issn         = {{2511-9044}},
  journal      = {{Advanced Quantum Technologies}},
  number       = {{1}},
  publisher    = {{Wiley}},
  title        = {{{On‐Demand Indistinguishable and Entangled Photons Using Tailored Cavity Designs}}},
  doi          = {{10.1002/qute.202300142}},
  volume       = {{7}},
  year         = {{2023}},
}

@inproceedings{45578,
  abstract     = {{A frequency-flexible Nyquist pulse synthesizer is presented with optical pulse bandwidths up to fopt=100 GHz and repetition rates equal to fopt/9, fabricated in an electronic-photonic co-integrated platform utilizing linear on-chip drivers.}},
  author       = {{Kress, Christian and Schwabe, Tobias and Silberhorn, Christine and Scheytt, J. Christoph}},
  booktitle    = {{ Conference on Lasers and Electro-Optics (CLEO) 2023}},
  location     = {{San Jose, CA, USA}},
  publisher    = {{Optica Publishing Group}},
  title        = {{{Generation of 100 GHz Periodic Nyquist Pulses using Cascaded Mach-Zehnder Modulators in a Silicon Electronic-Photonic Platform}}},
  doi          = {{https://doi.org/10.1364/CLEO_SI.2023.SF1P.6}},
  year         = {{2023}},
}

@article{46863,
  author       = {{Schenke, Maximilian and Haucke-Korber, Barnabas and Wallscheid, Oliver}},
  issn         = {{0885-8993}},
  journal      = {{IEEE Transactions on Power Electronics}},
  keywords     = {{Electrical and Electronic Engineering}},
  pages        = {{1--16}},
  publisher    = {{Institute of Electrical and Electronics Engineers (IEEE)}},
  title        = {{{Finite-Set Direct Torque Control via Edge Computing-Assisted Safe Reinforcement Learning for a Permanent Magnet Synchronous Motor}}},
  doi          = {{10.1109/tpel.2023.3303651}},
  year         = {{2023}},
}

@inproceedings{46865,
  author       = {{Haucke-Korber, Barnabas and Schenke, Maximilian and Wallscheid, Oliver}},
  booktitle    = {{2023 IEEE International Electric Machines &amp; Drives Conference (IEMDC)}},
  publisher    = {{IEEE}},
  title        = {{{Deep Q Direct Torque Control with a Reduced Control Set Towards Six-Step Operation of Permanent Magnet Synchronous Motors}}},
  doi          = {{10.1109/iemdc55163.2023.10239018}},
  year         = {{2023}},
}

@inproceedings{46864,
  author       = {{Book, Felix and Traue, Arne and Schenke, Maximilian and Haucke-Korber, Barnabas and Wallscheid, Oliver}},
  booktitle    = {{2023 IEEE International Electric Machines &amp; Drives Conference (IEMDC)}},
  publisher    = {{IEEE}},
  title        = {{{Gym-Electric-Motor (GEM) Control: An Automated Open-Source Controller Design Suite for Drives}}},
  doi          = {{10.1109/iemdc55163.2023.10239044}},
  year         = {{2023}},
}

@article{45445,
  author       = {{Claes, Leander and Feldmann, Nadine and Schulze, Veronika and Meihost, Lars and Kuhlmann, Henrik and Jurgelucks, Benjamin and Walther, Andrea and Henning, Bernd}},
  journal      = {{Journal of Sensors and Sensor Systems}},
  number       = {{1}},
  pages        = {{163–173}},
  title        = {{{Inverse procedure for measuring piezoelectric material parameters using a single multi-electrode sample}}},
  doi          = {{10.5194/jsss-12-163-2023}},
  volume       = {{12}},
  year         = {{2023}},
}

@misc{45455,
  author       = {{Claes, Leander and Meihost, Lars and Jurgelucks, Benjamin}},
  title        = {{{Inverse procedure for the identification of piezoelectric material parameters supported by dense neural networks}}},
  year         = {{2023}},
}

@inproceedings{57086,
  author       = {{Kuhlmann, Michael and Meise, Adrian Tobias and Seebauer, Fritz and Wagner, Petra and Häb-Umbach, Reinhold}},
  booktitle    = {{Speech Communication; 15th ITG Conference}},
  pages        = {{121–125}},
  title        = {{{Investigating Speaker Embedding Disentanglement on Natural Read Speech}}},
  year         = {{2023}},
}

@inproceedings{29767,
  author       = {{Abughannam, Saed and Scheytt, J. Christoph}},
  booktitle    = {{International Symposium on Circuits and Systems (ISCAS 2022)}},
  publisher    = {{IEEE Xplore}},
  title        = {{{Low-Power Low-Data-Rate Wireless PPM Receiver Based on 13-Bits Barker Coded SAW Correlator with Scalable Data-Rate and Sensitivity}}},
  year         = {{2022}},
}

@article{30012,
  abstract     = {{The growing demand for bandwidth and energy efficiency requires new solutions for signal detection and processing. We demonstrate a concept for high-bandwidth signal detection with low-speed photodetectors and electronics. The method is based on the parallel optical sampling of a high-bandwidth signal with sinc-pulse sequences provided by a Mach-Zehnder modulator. For the electronic detection and processing this parallel sampling enables to divide the high-bandwidth optical signal with the bandwidth B into N electrical signals with the baseband bandwidth of B/(2N) . In proof-of-concept experiments with N=3 , we present the detection of 24 GHz optical signals by detectors with a bandwidth of only 4 GHz. For ideal components, the sampling and bandwidth down-conversion does not add an excess error to the signals and even for the non-ideal components of our proof-of-concept setup, it is below 1%. Thus, the rms error for the measurement of the 24 GHz signal was reduced by a factor of about 3.4 and the effective number of bits were increased by 1.8.}},
  author       = {{Meier, Janosch and Singh, Karanveer and Misra, Arijit and Preussler, Stefan and Scheytt, Christoph and Schneider, Thomas}},
  issn         = {{1943-0655 }},
  journal      = {{IEEE Photonics Journal}},
  title        = {{{High-Bandwidth Arbitrary Signal Detection Using Low-Speed Electronics}}},
  doi          = {{10.1109/JPHOT.2022.3149389}},
  volume       = {{14}},
  year         = {{2022}},
}

@inproceedings{30347,
  author       = {{Schafmeister, Frank}},
  booktitle    = {{International Conference on Electric & Electronic in Hybrid and Electric Vehicles and Electric Energy Management (EEHE),}},
  location     = {{Bamberg, Germany}},
  title        = {{{Compensation of LF Common-Mode Noise by the internal DC/DC-Stage for transformerless On-Board Chargers at Three- and Single-Phase Operation}}},
  year         = {{2022}},
}

@inproceedings{30349,
  author       = {{Förster, Nikolas and Rehlaender, Philipp and Wallscheid, Oliver and Schafmeister, Frank and Böcker, Joachim}},
  booktitle    = {{Proc. 37th IEEE Applied Power Electronics Conference (APEC)}},
  location     = {{Houston, TX, USA}},
  publisher    = {{IEEE}},
  title        = {{{An Open-Source Transistor Database and Toolbox as an Unified Software Engineering Tool for Managing and Evaluating Power Transistors}}},
  year         = {{2022}},
}

@inproceedings{30350,
  author       = {{Keuck, Lukas and Schafmeister, Frank and Böcker, Joachim}},
  booktitle    = {{Proc. IEEE International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management (PCIM)}},
  location     = {{Nuremberg, Germany}},
  publisher    = {{IEEE}},
  title        = {{{Robust Hysteresis Control for LLC Resonant Converters Using a Fully Isolated Measurement Scheme}}},
  year         = {{2022}},
}

@inproceedings{30387,
  abstract     = {{Resonant evanescent coupling can be utilized to selectively excite orbital angular momentum (OAM) modes of high angular order supported by a thin circular dielectric rod. Our 2.5-D hybrid-analytical coupled mode model combines the vectorial fields associated with the fundamental TE- and TM-modes of a standard silicon photonics slab waveguide, propagating at oblique angles with respect to the rod axis, and the hybrid modes supported by the rod. One observes an efficient resonant interaction in cases where the common axial wavenumber of the waves in the slab matches the propagation constant of one or more modes of the rod. For certain modes of high angular order, the incident wave is able to transfer its directionality to the field in the fiber, exciting effectively only one of a pair of degenerate OAM modes}},
  author       = {{Hammer, Manfred and Ebers, Lena and Förstner, Jens}},
  booktitle    = {{Complex Light and Optical Forces XVI}},
  editor       = {{Andrews, David L. and Galvez, Enrique J. and Rubinsztein-Dunlop, Halina}},
  keywords     = {{tet_topic_waveguide}},
  pages        = {{120170F}},
  publisher    = {{SPIE}},
  title        = {{{Resonant evanescent excitation of OAM modes in a high-contrast circular step-index fiber}}},
  doi          = {{10.1117/12.2612179}},
  year         = {{2022}},
}

@phdthesis{30722,
  abstract     = {{In dieser Arbeit wird die elektromagnetische Wellenausbreitung in integrierten optischen Wellenleitern mit Hilfe von halb analytischen und numerischen Simulationsmethoden untersucht. Im ersten Teil werden 2-D Si/SiO2-Wellenleiterkonfigurationen mit hohem Brechungsindexkontrast betrachtet. Die Strukturen werden mit halb geführten Wellen unter schrägen Ausbreitungswinkeln angeregt. Dadurch kann die Leistungsübertragung zu bestimmten ausgehenden Moden unterdrückt werden, wodurch vollständig verlustfreie Systeme entstehen. Zusätzlich dient die Anregung mit einem seitlich begrenzten, einfallenden Wellenbündel aus halb geführten Wellen dazu, praktisch relevantere 3-D Konfigurationen zu realisieren. Darüber hinaus wird eine schrittweise Winkelspektrum-Methode vorgestellt, die es ermöglicht, in Kombination mit voll vektoriellen 2-D Finite-Elemente-Lösungen für Teilprobleme mit geringerer Komplexität, die Wellenausbreitung in planaren, linsenförmigen Wellenleitern numerisch in drei Raumrichtungen zu berechnen. Im zweiten Teil dieser Arbeit wird die Ausbreitung in Wellenleiterstrukturen aus Lithiumniobat untersucht, welche für quantenoptische Effekte genutzt werden. Zur Detektion einzelner Photonen werden supraleitende Nanodrähte auf eindiffundierten Lithiumniobat Wellenleitern mit zusätzlicher Taperschicht aus Silizium betrachtet. Um die Wellenausbreitung in diesen 3-D Wellenleitern zu beschreiben, wird eine einseitig gerichtete Finite-Elemente „Modal Matching“ Methode eingeführt. Abschließend werden Rippenwellenleiter aus Lithiumniobat analysiert, die auf Siliziumdioxid Plattformen aufgebracht sind. Der Schwerpunkt liegt hier auf dem nichtlinearen „Parametric Down-Conversion“ Prozess, der für die Erzeugung verschränkter Photonen verwendet wird.}},
  author       = {{Ebers, Lena}},
  keywords     = {{tet_topic_waveguide}},
  title        = {{{Semi-guided waves in integrated optical waveguide structures}}},
  doi          = {{10.17619/UNIPB/1-1288}},
  year         = {{2022}},
}