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148 results on '"Benedikt Baeuerle"'

1. Tbit/s line-rate satellite feeder links enabled by coherent modulation and full-adaptive optics

Author

Yannik Horst, Bertold Ian Bitachon, Laurenz Kulmer, Jannik Brun, Tobias Blatter, Jean-Marc Conan, Aurélie Montmerle-Bonnefois, Joseph Montri, Béatrice Sorrente, Caroline B. Lim, Nicolas Védrenne, Daniel Matter, Loann Pommarel, Benedikt Baeuerle, and Juerg Leuthold

Subjects
Applied optics. Photonics, TA1501-1820, Optics. Light, QC350-467
Abstract

Abstract Free-space optical (FSO) communication technologies constitute a solution to cope with the bandwidth demand of future satellite-ground networks. They may overcome the RF bottleneck and attain data rates in the order of Tbit/s with only a handful of ground stations. Here, we demonstrate single-carrier Tbit/s line-rate transmission over a free-space channel of 53.42 km between the Jungfraujoch mountain top (3700 m) in the Swiss Alps and the Zimmerwald Observatory (895 m) near the city of Bern, achieving net-rates of up to 0.94 Tbit/s. With this scenario a satellite-ground feeder link is mimicked under turbulent conditions. Despite adverse conditions high throughput was achieved by employing a full adaptive optics system to correct the distorted wavefront of the channel and by using polarization-multiplexed high-order complex modulation formats. It was found that adaptive optics does not distort the reception of coherent modulation formats. Also, we introduce constellation modulation – a new four-dimensional BPSK (4D-BPSK) modulation format as a technique to transmit high data rates under lowest SNR. This way we show 53 km FSO transmission of 13.3 Gbit/s and 210 Gbit/s with as little as 4.3 and 7.8 photons per bit, respectively, at a bit-error ratio of 1 ∙ 10−3. The experiments show that advanced coherent modulation coding in combination with full adaptive optical filtering are proper means to make next-generation Tbit/s satellite communications practical.

Published
2023
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2. Perspective: Nanophotonic electro-optics enabling THz bandwidths, exceptional modulation and energy efficiencies, and compact device footprints

Author

Larry R. Dalton, Juerg Leuthold, Bruce H. Robinson, Christian Haffner, Delwin L. Elder, Lewis E. Johnson, Scott R. Hammond, Wolfgang Heni, Claudia Hosessbacher, Benedikt Baeuerle, Eva De Leo, Ueli Koch, Patrick Habegger, Yuriy Fedoryshyn, David Moor, and Ping Ma

Subjects
Biotechnology, TP248.13-248.65, Physics, QC1-999
Abstract

The growth of integrated photonics has driven the need for efficient, high-bandwidth electrical-to-optical (EO) signal conversion over a broad range of frequencies (MHz–THz), together with efficient, high bandwidth photodetection. Efficient signal conversion is needed for applications including fiber/wireless telecom, data centers, sensing/imaging, metrology/spectroscopy, autonomous vehicle platforms, etc., as well as cryogenic supercomputing/quantum computing. Diverse applications require the ability to function over a wide range of environmental conditions (e.g., temperatures from 400 K). Active photonic device footprints are being scaled toward nanoscopic dimensions for size compatibility with electronic elements. Nanophotonic devices increase optical and RF field confinement via small feature sizes, increasing field intensities by many orders of magnitude, enabling high-performance Pockels effect materials to be ultimately utilized to their maximum potential (e.g., in-device voltage-length performance ≤0.005 V mm). Organic materials have recently exhibited significant improvements in performance driven by theory-guided design, with realized macroscopic electro-optic activity (r33) exceeding 1000 pm/V at telecom wavelengths. Hybrid organic/semiconductor nanophotonic integration has propelled the development of new organic synthesis, processing, and design methodologies to capture this high performance and has improved understanding of the spatial distribution of the order of poled materials under confinement and the effects of metal/semiconductor-organic interfaces on device performance. Covalent coupling, whether from in situ crosslinking or sequential synthesis, also provides a thermally and photochemically stable alternative to thermoplastic EO polymers. The alternative processing techniques will reduce the attenuation of r33 values observed in silicon organic hybrid and plasmonic organic hybrid devices arising from chromophore-electrode electrostatic interactions and material conductance at poling temperatures. The focus of this perspective is on materials, with an emphasis on the need to consider the interrelationship between hybrid device architectures and materials.

Published
2023
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3. Plasmonic IQ modulators with attojoule per bit electrical energy consumption

Author

Wolfgang Heni, Yuriy Fedoryshyn, Benedikt Baeuerle, Arne Josten, Claudia B. Hoessbacher, Andreas Messner, Christian Haffner, Tatsuhiko Watanabe, Yannick Salamin, Ueli Koch, Delwin L. Elder, Larry R. Dalton, and Juerg Leuthold

Subjects
Science
Abstract

Increasing bandwidth demands in optical communications requires components to be compact with energy-efficient operation. Here, the authors demonstrate plasmonic IQ modulators on a silicon photonics platform with phase shifters, operating with sub-1V electronics at 100 GBaud and low electrical energy consumption.

Published
2019
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4. Towards Efficient Confluent Edge Networks.

Author

Rishu Raj, Devika Dass, Kaida Kaeval, Sai Kireet Patri, Vincent Sleiffer, Benedikt Baeuerle, Wolfgang Heni, Marco Ruffini, Colm Browning, Alan Naughton, Ruth Mackey, David Mackey, Boris Vukovic, Jasmin Smajic, Juerg Leuthold, Carlos Natalino, Lena Wosinska, Tommy Svensson, Aleksandra Kaszubowska-Anandarajah, Ioanna Mesogiti, Simon Pryor, Anna Tzanakaki, Reza Nejabati, Paolo Monti 0001, and Dan Kilper

Published
2024
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5. Optical Transmitters without Driver Amplifiers—Optimal Operation Conditions

Author

Arne Josten, Benedikt Baeuerle, Romain Bonjour, Wolfgang Heni, and Juerg Leuthold

Subjects
optical communications, fiber optics communications, modulators, mitigation of optical transceiver impairments, Technology, Engineering (General). Civil engineering (General), TA1-2040, Biology (General), QH301-705.5, Physics, QC1-999, Chemistry, QD1-999
Abstract

An important challenge in optical communications is the generation of highest-quality waveforms with a Mach–Zehnder modulator with a limited electrical swing (Vpp). For this, we discuss, under limited Vpp, the influence of the waveform design on the root-mean-square amplitude, and thus, the optical signal quality. We discuss the influence of the pulse shape, clipping, and digital pre-distortion on the signal quality after the electrical-to-optical conversion. Our simulations and experiments, e.g., suggest that pre-distortion comes at the expense of electrical swing of the eye-opening and results in a lower optical signal-to-noise ratio (OSNR). Conversely, digital post-distortion provides operation with larger eye-openings, and therefore, provides an SNR increase of at least 0.5 dB. Furthermore, we find that increasing the roll-off factor increases the electrical swing of the eye-opening. However, there is negligible benefit of increasing the roll-off factor of square-root-raised-cosine pulse shaped signals beyond 0.4. The findings are of interest for single-channel intensity modulation and direct detection (IM/DD) links, as well as optical coherent communication links.

Published
2018
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7. Plasmonic Modulators for Future Highest-Speed Free Space Optical Communications.

Author

Laurenz Kulmer, Yannik Horst, Bertold I. Bitachon, Marcel Destraz, Tobias Blatter, Matthieu Rimlinger, Killian Keller, Valentino Tedaldi, Patrick Habegger, Eva de Leo, Wolfgang Heni, Claudia Hoessbacher, Aurélie Montmerle-Bonnefois, Caroline B. Lim, Jean-Marc Conan, Joseph Montri, Beatrice Sorrente, Philippe Perrault, Cyril Petit, Nicolas Védrenne, Loann Pommarel, Hannah Lindberg, Laurent Francou, Daniel Matter, Arnaud Le Kernec, Anaëlle Maho, Simon Lévêque, Michael Sotom, Benedikt Baeuerle, and Juerg Leuthold

Published
2023
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9. 180 GBd Electronic-Plasmonic IC Transmitter.

Author

David Moor, Yuriy Fedoryshyn, Henning Langenhagen, Jens Müllrich, Rolf Schmid, Christopher Uhl, Michael Möller 0004, Ueli Koch, Yannik Horst, Bertold I. Bitachon, Wolfgang Heni, Benedikt Baeuerle, Marcel Destraz, Huajun Xu, Delwin L. Elder, Lewis E. Johnson, Paraskevas Bakopoulos, Elad Mentovich, Lars Zimmermann, and Juerg Leuthold

Published
2022

11. Generation and transmission of 160-Gbaud QPSK Coherent Signals using a Dual-Drive Plasmonic-Organic Hybrid I/Q modulator on Silicon Photonics.

Author

Haïk Mardoyan, Filipe Jorge, Marcel Destraz, Bernadette Duval, Bertold I. Bitachon, Yannik Horst, Kaoutar Benyahya, Fabrice Blache, Michel Goix, Eva de Leo, Patrick Habegger, Norbert Meier, Nino Del Medico, Valentino Tedaldi, Christian Funck, Nicholas Güsken, Juerg Leuthold, Jérémie Renaudier, Claudia Hoessbacher, Wolfgang Heni, and Benedikt Baeuerle

Published
2022

15. Plasmonic Data Center Interconnects (DCIs).

Author

Juerg Leuthold, Benedikt Baeuerle, Wolfgang Heni, Claudia Hoessbacher, Loïc Chérix, David Moor, Marco Eppenberger, Yuriy Fedoryshyn, Ueli Koch, and Jasmin Smajic

Published
2021

20. Sub-fJ/Bit Operation of 100 GBd Plasmonic IQ Modulators.

Author

Wolfgang Heni, Yuriy Fedoryshyn, Benedikt Baeuerle, Arne Josten, Claudia Hoessbacher, Andreas Messner, Christian Haffner 0001, Yannick Salamin, Ueli Koch, Tatsuhiko Watanabe, Delwin L. Elder, Larry R. Dalton, and Juerg Leuthold

Published
2019

23. Ultrafast Beam Steering Enabled by Photonics & Plasmonics.

Author

Juerg Leuthold, Romain Bonjour, Yannick Salamin, Claudia Hoessbacher, Wolfgang Heni, Christian Haffner 0001, Arne Josten, Benedikt Baeuerle, Masafumi Ayata, Andreas Messner, Ueli Koch, Tatsuhiko Watanabe, Yuriy Fedoryshyn, Ping Ma, and Maurizio Burla

Published
2018

24. Plasmonics for Communications.

Author

Juerg Leuthold, Romain Bonjour, Yannick Salamin, Claudia Hoessbacher, Wolfgang Heni, Christian Haffner 0001, Arne Josten, Benedikt Baeuerle, Masafumi Ayata, Andreas Messner, Ueli Koch, Tatsuhiko Watanabe, Yuriy Fedoryshyn, Ping Ma, Maurizio Burla, Delwin L. Elder, and Larry R. Dalton

Published
2018

27. What can Plasmonics Bring to Microwave Photonics?

Author

Juerg Leuthold, Yannick Salamin, Romain Bonjour, Maurizio Burla, Christian Haffner 0001, Wolfgang Heni, Yuriy Fedoryshyn, Masafumi Ayata, Benedikt Baeuerle, Arne Josten, Claudia Hoessbacher, Delwin L. Elder, and Larry R. Dalton

Published
2018
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39. Resonant plasmonic micro-racetrack modulators with high bandwidth and high temperature tolerance

Author

Marco Eppenberger, Andreas Messner, Bertold Ian Bitachon, Wolfgang Heni, Tobias Blatter, Patrick Habegger, Marcel Destraz, Eva De Leo, Norbert Meier, Nino Del Medico, Claudia Hoessbacher, Benedikt Baeuerle, and Juerg Leuthold

Subjects
Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials
Abstract

Resonant modulators encode electrical data onto wavelength-multiplexed optical carriers. Today, silicon microring modulators are perceived as promising to implement such links; however, they provide limited bandwidth and need thermal stabilization systems. Here we present plasmonic micro-racetrack modulators as a potential successor of silicon microrings: they are equally compact and compatible with complementary-metal–oxide–semiconductor-level driving voltages, but offer electro-optical bandwidths of 176 GHz, a 28 times improved stability against operating temperature changes and no self-heating effects. The temperature-resistant organic electro-optic material enables operation at 85 °C device temperature. We show intensity-modulated transmission of up to 408 Gbps at 12.3 femtojoules per bit with a single resonant modulator. Plasmonic micro-racetrack modulators offer a solution to encode high data rates (for example, the 1.6 Tbps envisioned by next-generation communications links) at a small footprint, with low power consumption and marginal, if no, temperature control., Nature Photonics, 17 (4), ISSN:1749-4885, ISSN:1749-4893

Published
2023

43. Reducing Training Time of Deep Learning Based Digital Backpropagation by Stacking

Author

Bertold Ian Bitachon, Marco Eppenberger, Benedikt Baeuerle, and Juerg Leuthold

Subjects
Electrical and Electronic Engineering, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials
Abstract

A method for reducing the training time of a deep learning based digital backpropagation (DL-DBP) is presented. The method is based on dividing a link into smaller sections. A smaller section is then compensated by the DL-DBP algorithm and the same trained model is then reapplied to the subsequent sections. We show in a 32 GBd 16QAM 2400 km 5-channel wavelength division multiplexing transmission link experiment that the proposed stacked DL-DBPs provides a 0.41 dB gain with respect to linear compensation scheme. This needs to be compared with a 0.56 dB gain achieved by a non-stacked DL-DBPs compensated scheme for the price of a 203% increase in total training time. Furthermore, it is shown that by only training the last section of the stacked DL-DBP, one can increase the compensation performance to 0.48 dB., IEEE Photonics Technology Letters, 34 (7), ISSN:1041-1135, ISSN:1941-0174

Published
2022

46. Ultra-compact plasmonic IQ-modulator.

Author

Christian Haffner 0001, Wolfgang Heni, Yuriy Fedoryshyn, Benedikt Baeuerle, Arne Josten, Yannick Salamin, Romain Bonjour, Claudia Hoessbacher, Alexandros Emboras, Delwin L. Elder, Pascal Leuchtmann, David Hillerkuss, Larry R. Dalton, Christian Hafner 0001, and Juerg Leuthold

Published
2015
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47. Reduced Equalization Needs of 100 GHz Bandwidth Plasmonic Modulators

Author

Christopher Uhl, Horst Hettrich, Michael Moller, Benedikt Baeuerle, Delwin L. Elder, Yuriy Fedoryshyn, Christian Haffner, Arne Josten, Larry R. Dalton, Claudia Hoessbacher, Tatsuhiko Watanabe, Juerg Leuthold, and Wolfgang Heni

Subjects
Frequency response, Computer science, Direct detection, optical interconnects, 02 engineering and technology, electrooptic modulation, optical transmitter, plasmonics, 020210 optoelectronics & photonics, 0202 electrical engineering, electronic engineering, information engineering, Electronic engineering, Signal conditioning, Digital signal processing, Silicon photonics, optical modulation, silicon photonics, business.industry, Bandwidth (signal processing), Single-mode optical fiber, Atomic and Molecular Physics, and Optics, electro-optic devices, integrated optics, business, Phase modulation, Data transmission
Abstract

As bit rates of optical interconnects increase, a large amount of complicated signal conditioning is needed to compensate for the insufficient bandwidth of current modulators. In this paper, we evaluate the reduced equalization requirements of high-bandwidth plasmonic modulators in short-reach transmission experiments. It is shown that transmission of 100 Gbit/s non-return-to-zero (NRZ) and 112 Gbit/s pulse-amplitude modulation-4 over 1 km and 2 km distance is possible without any receiver equalization. At higher bit-rates, such as 120 Gbit/s NRZ, data transmission is demonstrated over 500 m with reduced receiver equalization requirements. Transmission up to 200 Gbit/s over 1 km is also shown with more complex receiver equalization. The reduced complexity of the receiver digital signal processing is attributed to a flat frequency response of at least 108 GHz of the plasmonic modulators. All single wavelength transmissions have been performed at 1540 nm in standard single mode fiber.

Published
2022
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48. 120 GBd plasmonic Mach-Zehnder modulator with a novel differential electrode design operated at a peak-to-peak drive voltage of 178 mV

Author

Delwin L. Elder, Juerg Leuthold, Arne Josten, Michael Moller, Horst Hettrich, Tatsuhiko Watanabe, Ueli Koch, Christopher Uhl, Claudia Hoessbacher, Benedikt Baeuerle, Wolfgang Heni, Larry R. Dalton, and Yuriy Fedoryshyn

Subjects
Materials science, business.industry, Transmitter, Single-mode optical fiber, Electro-optic modulator, 02 engineering and technology, 021001 nanoscience & nanotechnology, 01 natural sciences, 7. Clean energy, Atomic and Molecular Physics, and Optics, 010309 optics, Optics, Transmission (telecommunications), 0103 physical sciences, Electrode, Limit (music), Optoelectronics, 0210 nano-technology, business, Plasmon, Voltage
Abstract

A new plasmonic Mach-Zehnder modulator is demonstrated at a bit rate of 120 Gb/s NRZ-OOK with low peak-to-peak driving voltages of 178 mVpp below the HD-FEC limit. Such record low driving voltage requirements potentially translate into an electrical drive power consumption of 862 aJ/bit. The low drive voltages have been made possible by a new differential Mach-Zehnder modulator electrode design. The differential electrode design is optimized for the balanced driving circuitry and reduces the effectively required driving voltage by a factor of four (Vπ/4). The potential of the transmitter scheme is further demonstrated by a transmission experiment over 500 m of single mode fiber at the C-band with a BER performance below the KP4 FEC limit.

Published
2022
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50. Tbit/s Single Channel 53 km Free-Space Optical Transmission -Assessing the Feasibility of Optical GEO-Satellite Feeder Links

Author

Bertold Ian Bitachon, Yannik Horst, Laurenz Kulmer, Tobias Blatter, Killian Keller, Aurélie Montmerle Bonnefois, Jean-Marc Conan, Caroline Lim, Joseph Montri, Philippe Perrault, Cyril Petit, Béatrice Sorrente, Nicolas Védrenne, Daniel Matter, Loann Pommarel, Hannah Lindberg, Laurent Francou, Arnaud Le Kernec, Anaëlle Maho, Simon Lévêque, Michel Sotom, Benedikt Baeuerle, Juerg Leuthold, and LIM, Caroline B.

Subjects
[SPI] Engineering Sciences [physics], [PHYS] Physics [physics]
Abstract

A 1 Tbit/s 53km single channel free-space optical (FSO) link is demonstrated. High bandwidth, high order modulation formats and advanced adaptive optics are utilized. We show that the absence of a nonlinear-Shannon limit in combination with adaptive optics enables record data-transmission with low link failures.

Published
2022
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