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Bernhard Spinnler
Researcher at Nokia Networks
Publications - 183
Citations - 3600
Bernhard Spinnler is an academic researcher from Nokia Networks. The author has contributed to research in topics: Quadrature amplitude modulation & Wavelength-division multiplexing. The author has an hindex of 27, co-authored 183 publications receiving 3141 citations. Previous affiliations of Bernhard Spinnler include Siemens.
Papers
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Journal ArticleDOI
Digital Compensation of Bandwidth Limitations for High-Speed DACs and ADCs
Antonio Napoli,Mahdi M. Mezghanni,Talha Rahman,Danish Rafique,Robert Palmer,Bernhard Spinnler,Stefano Calabro,Carlos Castro,Maxim Kuschnerov,Marc Bohn +9 more
TL;DR: A novel digital preemphasis algorithm to compensate for the electrical bandwidth limitations at the transceiver also by taking into account the quantization noise introduced by the signal digitalization, and can considerably increase the maximum transmittable symbol rate for the case of advanced modulation formats.
Journal ArticleDOI
Complex-Valued Neural Network Design for Mitigation of Signal Distortions in Optical Links
Pedro J. Freire,Vladislav Neskornuik,Antonio Napoli,Bernhard Spinnler,Nelson Costa,Ginni Khanna,Emilio Riccardi,Jaroslaw E. Prilepsky,Sergei K. Turitsyn +8 more
TL;DR: The results highlight that the NN is able to mitigate not only part of the nonlinear impairments caused by optical fiber propagation but also imperfections resulting from using low-cost legacy transceiver components, such as digital-to-analog converter (DAC) and Mach-Zehnder modulator.
Proceedings ArticleDOI
Multi-rate (111-Gb/s, 2×43-Gb/s, and 8×10.7-Gb/s) transmission at 50-GHz channel spacing over 1040-km field-deployed fiber
T. J. Xia,Glenn A. Wellbrock,Daniel L. Peterson,Wang-Chien Lee,M. Pollock,B. Basch,David Z. Chen,Michael Freiberger,M. S. Alfiad,H. de Waardt,M. Kuschnerov,Berthold Lankl,T. Wuth,E.-D. Schmidt,Bernhard Spinnler,C.-J. Weiske,E. de Man,C. Xie,D. van den Borne,M. Finkenzeller,Stefan Spaelter,R. H. Derksen,M. Rehman,J. Behel,J. Stachowiak,M. Chbat +25 more
TL;DR: In this article, the feasibility of 100G overlaying existing 10G/40G commercial systems is demonstrated, showing that 100G can be achieved over a 50GHz grid over 1,040 km field fiber and two ROADMs.
Proceedings ArticleDOI
Adaptive equalizer complexity in coherent optical receivers
TL;DR: Structures for adaptive equalization in coherent receivers with polarization multiplex with single and multi carrier approaches are reviewed and compared in terms of computation complexity.
Journal ArticleDOI
111-Gb/s Transmission Over 1040-km Field-Deployed Fiber With 10G/40G Neighbors
M. S. Alfiad,Maxim Kuschnerov,T. Wuth,T. J. Xia,Glenn A. Wellbrock,E.-D. Schmidt,D. van den Borne,Bernhard Spinnler,C.-J. Weiske,E. de Man,Antonio Napoli,M. Finkenzeller,Stefan Spaelter,M. Rehman,J. Behel,M. Chbat,J. Stachowiak,D. Peterson,Wang-Chien Lee,M. Pollock,B. Basch,David Z. Chen,M. Freiberger,Berthold Lankl,H. de Waardt +24 more
TL;DR: In this paper, the authors demonstrate transmission of a 111-Gb/s coherent polarization-multiplexed return-to-zero differential quadrature phase shift keying signal over 1040-km field-deployed fiber together with different types of neighboring channels, and with a cascade of 50-GHz reconfigerable optical add-drop multiplexers.