Chair of Communications

M.Sc. Jonas Koch

Jonas Koch Room: KS 2, C-031
Fon: +49 (0)431 880 6305
Fax: +49 (0)431 880 6303


Research Activity:

  • Nonlinear Fourier Transformation
  • Long-Haul Networks
  • Optimization of spektral efficiency



  • Bachelorpraktikum Nachrichten- und Informationstechnik




J. Koch, A. Moscoso-Mártir, J. Müller, A. Tabatabaei Mashayekh, A. D. Das, F. Merget, S. Pachnicke, J. Witzens, "Experimental Demonstration of a Silicon-Photonics WDM NFT Soliton Transmitter", Optical Fiber Communication Conference (OFC 2021), San Francisco, USA, June 2021.
J. Koch, K. Chan, C. G. Schaeffer, S. Pachnicke, "(Invited) Signal Processing Techniques for Optical Transmission Based on Eigenvalue Communication", IEEE J. Sel. Top. Quant. Elect. (JSTQE), vol. 27, no. 3, May-June 2021.


J. Koch, K. Chan, S. Kuehl, C. G. Schaeffer, S. Pachnicke, "Neural Networks based Equalization of Experimental Transmission using the Nonlinear Fourier Transformation", European Conference on Optical Communication (ECOC 2020), Brussels, Belgium, December 2020.
R. Weixer, J. Koch, S. Ohlendorf, S. Pachnicke, "(Invited) Experimental Demonstration of Nonlinearity Compensation by Using SVM and Nonlinear Volterra Equalizer for 80 GBd DP-16-QAM", International Conference on Transparent Optical Networks (ICTON), Bari, Italy, July 2020.
A. Moscoso-Martir, J. Koch, J. Müller, S. Sharif Azadeh, S. Pachnicke, J. Witzens, "Silicon Photonics DWDM NLFT Soliton Transmitter Implementation and Link Budget Assessment", European Conference on Integrated Optics (ECIO), Paris, France, June 2020.
J. Koch, A. Moscoso-Martir, J. Mueller, S. Pachnicke, J. Witzens, "Silicon Photonics DWDM NLFT Soliton Transmitter", ITG Conference "Photonic Networks", Leipzig, Germany, November 2020.
J. Koch, S. Pachnicke, "Impact of Linear WDM Soliton Superposition on the NFT-Spectrum", Workshop "Nonlinear Fourier Transforms", Delft, Netherlands, February 2020.


R. Weixer, J. Koch, P. Plany, S. Ohlendorf, S. Pachnicke, "Mitigation of Nonlinear Impairments by Using Support Vector Machine and Nonlinear Volterra Equalizer", J. Appl. Sci., Special Issue "Optics for AI and AI for Optics", vol. 9, no. 18, 3800, September 2019
J. Koch, R. Weixer, S. Pachnicke, "Equalization of Soliton Transmission Based on Nonlinear Fourier Transform using Neural Networks", European Conference on Optical Communication (ECOC 2019), Dublin, Ireland, September 2019.
J. Koch, J. Mueller, A. Moscoso-Martir, J. Witzens, S. Pachnicke, "DWDM Soliton Transmission enabled by Integrated Photonics and Nonlinear Fourier Transform", ITG Conference "Photonic Networks", Leipzig, Germany, May 2019.
J. Koch, S. Li, S. Pachnicke, "Transmission of Higher Order Solitons created by Optical Multiplexing", IEEE J. Lightw. Technol. (JLT), vol. 37, 2019.


J. Koch, S. Li, S. Pachnicke, „Separation of Bounded Higher-Order Solitons by Exploiting Collisions in WDM Transmission Systems”, European Conference on Optical Communication (ECOC), Rome, Italy, September 2018.
J. Koch, S. Li, S. Pachnicke, "Nonlinear Fourier Transform based Optical Transmission using Electronic-Photonic Signal Processing", 10th Sino-German Joint Symposium on Opto- and Microelectronic Devices and Circuits (SODC 2018), Aachen, Germany, September 2018.
Shi Li, Jonas Koch, Stephan Pachnicke, “Optical Signal Processing in the Discrete Nonlinear Frequency Domain”, Optical Fiber Communication Conference (OFC 2018), San Diego, USA, March 2018.
J. Koch, S. Li, S. Pachnicke, „Higher-Order Soliton Transmission using Electro-Photonic Signal Processing“, ITG-Workshop "Modelling of Photonic Components & Systems", Hamburg, Germany, February 2018.


Shi Li, Jonas Koch, Dennis Clausen, Stephan Pachnicke, „Investigation of Error Susceptibility of Noisy Soliton Pulses in the Nonlinear Frequency Domain“, ITG Workshop „Modelling of Photonic Components & Systems“, Munich, February 2017.